1280686260

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^2\times {\mathrm{167}}^1$

素因数の和:267

約数の個数: 288

約数和(自身を含む): 4484229120

約数和(自身を除く): 3203542860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 19, 20, 21, 28, 30, 31, 35, 38, 42, 57, 60, 62, 70, 76, 84, 93, 95, 105, 114, 124, 133, 140, 155, 167, 186, 190, 210, 217, 228, 266, 285, 310, 334, 372, 380, 399, 420, 434, 465, 501, 532, 570, 589, 620, 651, 665, 668, 798, 835, 868, 930, 961, 1002, 1085, 1140, 1169, 1178, 1302, 1330, 1596, 1670, 1767, 1860, 1922, 1995, 2004, 2170, 2338, 2356, 2505, 2604, 2660, 2883, 2945, 3173, 3255, 3340, 3507, 3534, 3844, 3990, 4123, 4340, 4676, 4805, 5010, 5177, 5766, 5845, 5890, 6346, 6510, 6727, 7014, 7068, 7980, 8246, 8835, 9519, 9610, 10020, 10354, 11532, 11690, 11780, 12369, 12692, 13020, 13454, 14028, 14415, 15531, 15865, 16492, 17535, 17670, 18259, 19038, 19220, 20181, 20615, 20708, 22211, 23380, 24738, 25885, 26908, 28830, 31062, 31730, 33635, 35070, 35340, 36239, 36518, 38076, 40362, 41230, 44422, 47595, 49476, 51770, 54777, 57660, 61845, 62124, 63460, 66633, 67270, 70140, 72478, 73036, 77655, 80724, 82460, 88844, 91295, 95190, 98363, 100905, 103540, 108717, 109554, 111055, 123690, 127813, 133266, 134540, 144956, 155310, 160487, 181195, 182590, 190380, 196726, 201810, 217434, 219108, 222110, 247380, 255626, 266532, 273885, 295089, 310620, 320974, 333165, 362390, 365180, 383439, 393452, 403620, 434868, 444220, 481461, 491815, 511252, 543585, 547770, 590178, 639065, 641948, 666330, 688541, 724780, 766878, 802435, 962922, 983630, 1087170, 1095540, 1123409, 1180356, 1278130, 1332660, 1377082, 1475445, 1533756, 1604870, 1917195, 1925844, 1967260, 2065623, 2174340, 2246818, 2407305, 2556260, 2754164, 2950890, 3049253, 3209740, 3370227, 3442705, 3834390, 4131246, 4493636, 4814610, 5617045, 5901780, 6098506, 6740454, 6885410, 7668780, 8262492, 9147759, 9629220, 10328115, 11234090, 12197012, 13480908, 13770820, 15246265, 16851135, 18295518, 20656230, 21344771, 22468180, 30492530, 33702270, 36591036, 41312460, 42689542, 45738795, 60985060, 64034313, 67404540, 85379084, 91477590, 106723855, 128068626, 182955180, 213447710, 256137252, 320171565, 426895420, 640343130, 1280686260]

約数ペア:

[(1, 1280686260), (2, 640343130), (3, 426895420), (4, 320171565), (5, 256137252), (6, 213447710), (7, 182955180), (10, 128068626), (12, 106723855), (14, 91477590), (15, 85379084), (19, 67404540), (20, 64034313), (21, 60985060), (28, 45738795), (30, 42689542), (31, 41312460), (35, 36591036), (38, 33702270), (42, 30492530), (57, 22468180), (60, 21344771), (62, 20656230), (70, 18295518), (76, 16851135), (84, 15246265), (93, 13770820), (95, 13480908), (105, 12197012), (114, 11234090), (124, 10328115), (133, 9629220), (140, 9147759), (155, 8262492), (167, 7668780), (186, 6885410), (190, 6740454), (210, 6098506), (217, 5901780), (228, 5617045), (266, 4814610), (285, 4493636), (310, 4131246), (334, 3834390), (372, 3442705), (380, 3370227), (399, 3209740), (420, 3049253), (434, 2950890), (465, 2754164), (501, 2556260), (532, 2407305), (570, 2246818), (589, 2174340), (620, 2065623), (651, 1967260), (665, 1925844), (668, 1917195), (798, 1604870), (835, 1533756), (868, 1475445), (930, 1377082), (961, 1332660), (1002, 1278130), (1085, 1180356), (1140, 1123409), (1169, 1095540), (1178, 1087170), (1302, 983630), (1330, 962922), (1596, 802435), (1670, 766878), (1767, 724780), (1860, 688541), (1922, 666330), (1995, 641948), (2004, 639065), (2170, 590178), (2338, 547770), (2356, 543585), (2505, 511252), (2604, 491815), (2660, 481461), (2883, 444220), (2945, 434868), (3173, 403620), (3255, 393452), (3340, 383439), (3507, 365180), (3534, 362390), (3844, 333165), (3990, 320974), (4123, 310620), (4340, 295089), (4676, 273885), (4805, 266532), (5010, 255626), (5177, 247380), (5766, 222110), (5845, 219108), (5890, 217434), (6346, 201810), (6510, 196726), (6727, 190380), (7014, 182590), (7068, 181195), (7980, 160487), (8246, 155310), (8835, 144956), (9519, 134540), (9610, 133266), (10020, 127813), (10354, 123690), (11532, 111055), (11690, 109554), (11780, 108717), (12369, 103540), (12692, 100905), (13020, 98363), (13454, 95190), (14028, 91295), (14415, 88844), (15531, 82460), (15865, 80724), (16492, 77655), (17535, 73036), (17670, 72478), (18259, 70140), (19038, 67270), (19220, 66633), (20181, 63460), (20615, 62124), (20708, 61845), (22211, 57660), (23380, 54777), (24738, 51770), (25885, 49476), (26908, 47595), (28830, 44422), (31062, 41230), (31730, 40362), (33635, 38076), (35070, 36518), (35340, 36239)]