1278707220

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1723}}^1$

素因数の和:1795

約数の個数: 288

約数和(自身を含む): 4819476480

約数和(自身を除く): 3540769260

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 31, 35, 36, 38, 42, 45, 57, 60, 62, 63, 70, 76, 84, 90, 93, 95, 105, 114, 124, 126, 133, 140, 155, 171, 180, 186, 190, 210, 217, 228, 252, 266, 279, 285, 310, 315, 342, 372, 380, 399, 420, 434, 465, 532, 558, 570, 589, 620, 630, 651, 665, 684, 798, 855, 868, 930, 1085, 1116, 1140, 1178, 1197, 1260, 1302, 1330, 1395, 1596, 1710, 1723, 1767, 1860, 1953, 1995, 2170, 2356, 2394, 2604, 2660, 2790, 2945, 3255, 3420, 3446, 3534, 3906, 3990, 4123, 4340, 4788, 5169, 5301, 5580, 5890, 5985, 6510, 6892, 7068, 7812, 7980, 8246, 8615, 8835, 9765, 10338, 10602, 11780, 11970, 12061, 12369, 13020, 15507, 16492, 17230, 17670, 19530, 20615, 20676, 21204, 23940, 24122, 24738, 25845, 26505, 31014, 32737, 34460, 35340, 36183, 37107, 39060, 41230, 48244, 49476, 51690, 53010, 53413, 60305, 61845, 62028, 65474, 72366, 74214, 77535, 82460, 98211, 103380, 106020, 106826, 108549, 120610, 123690, 130948, 144732, 148428, 155070, 160239, 163685, 180915, 185535, 196422, 213652, 217098, 229159, 241220, 247380, 267065, 294633, 310140, 320478, 327370, 361830, 371070, 373891, 392844, 434196, 458318, 480717, 491055, 534130, 542745, 589266, 640956, 654740, 687477, 723660, 742140, 747782, 801195, 916636, 961434, 982110, 1014847, 1068260, 1085490, 1121673, 1145795, 1178532, 1374954, 1473165, 1495564, 1602390, 1869455, 1922868, 1964220, 2029694, 2062431, 2170980, 2243346, 2291590, 2403585, 2749908, 2946330, 3044541, 3204780, 3365019, 3437385, 3738910, 4059388, 4124862, 4486692, 4583180, 4807170, 5074235, 5608365, 5892660, 6089082, 6730038, 6874770, 7103929, 7477820, 8249724, 9133623, 9614340, 10148470, 10312155, 11216730, 12178164, 13460076, 13749540, 14207858, 15222705, 16825095, 18267246, 20296940, 20624310, 21311787, 22433460, 28415716, 30445410, 33650190, 35519645, 36534492, 41248620, 42623574, 45668115, 60890820, 63935361, 67300380, 71039290, 85247148, 91336230, 106558935, 127870722, 142078580, 182672460, 213117870, 255741444, 319676805, 426235740, 639353610, 1278707220]

約数ペア:

[(1, 1278707220), (2, 639353610), (3, 426235740), (4, 319676805), (5, 255741444), (6, 213117870), (7, 182672460), (9, 142078580), (10, 127870722), (12, 106558935), (14, 91336230), (15, 85247148), (18, 71039290), (19, 67300380), (20, 63935361), (21, 60890820), (28, 45668115), (30, 42623574), (31, 41248620), (35, 36534492), (36, 35519645), (38, 33650190), (42, 30445410), (45, 28415716), (57, 22433460), (60, 21311787), (62, 20624310), (63, 20296940), (70, 18267246), (76, 16825095), (84, 15222705), (90, 14207858), (93, 13749540), (95, 13460076), (105, 12178164), (114, 11216730), (124, 10312155), (126, 10148470), (133, 9614340), (140, 9133623), (155, 8249724), (171, 7477820), (180, 7103929), (186, 6874770), (190, 6730038), (210, 6089082), (217, 5892660), (228, 5608365), (252, 5074235), (266, 4807170), (279, 4583180), (285, 4486692), (310, 4124862), (315, 4059388), (342, 3738910), (372, 3437385), (380, 3365019), (399, 3204780), (420, 3044541), (434, 2946330), (465, 2749908), (532, 2403585), (558, 2291590), (570, 2243346), (589, 2170980), (620, 2062431), (630, 2029694), (651, 1964220), (665, 1922868), (684, 1869455), (798, 1602390), (855, 1495564), (868, 1473165), (930, 1374954), (1085, 1178532), (1116, 1145795), (1140, 1121673), (1178, 1085490), (1197, 1068260), (1260, 1014847), (1302, 982110), (1330, 961434), (1395, 916636), (1596, 801195), (1710, 747782), (1723, 742140), (1767, 723660), (1860, 687477), (1953, 654740), (1995, 640956), (2170, 589266), (2356, 542745), (2394, 534130), (2604, 491055), (2660, 480717), (2790, 458318), (2945, 434196), (3255, 392844), (3420, 373891), (3446, 371070), (3534, 361830), (3906, 327370), (3990, 320478), (4123, 310140), (4340, 294633), (4788, 267065), (5169, 247380), (5301, 241220), (5580, 229159), (5890, 217098), (5985, 213652), (6510, 196422), (6892, 185535), (7068, 180915), (7812, 163685), (7980, 160239), (8246, 155070), (8615, 148428), (8835, 144732), (9765, 130948), (10338, 123690), (10602, 120610), (11780, 108549), (11970, 106826), (12061, 106020), (12369, 103380), (13020, 98211), (15507, 82460), (16492, 77535), (17230, 74214), (17670, 72366), (19530, 65474), (20615, 62028), (20676, 61845), (21204, 60305), (23940, 53413), (24122, 53010), (24738, 51690), (25845, 49476), (26505, 48244), (31014, 41230), (32737, 39060), (34460, 37107), (35340, 36183)]