71987580

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:169

約数の個数: 288

約数和(自身を含む): 273960960

約数和(自身を除く): 201973380

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, 97, 105, 114, 124, 126, 133, 140, 155, 171, 180, 186, 190, 194, 210, 217, 228, 252, 266, 279, 285, 291, 310, 315, 342, 372, 380, 388, 399, 420, 434, 465, 485, 532, 558, 570, 582, 589, 620, 630, 651, 665, 679, 684, 798, 855, 868, 873, 930, 970, 1085, 1116, 1140, 1164, 1178, 1197, 1260, 1302, 1330, 1358, 1395, 1455, 1596, 1710, 1746, 1767, 1843, 1860, 1940, 1953, 1995, 2037, 2170, 2356, 2394, 2604, 2660, 2716, 2790, 2910, 2945, 3007, 3255, 3395, 3420, 3492, 3534, 3686, 3906, 3990, 4074, 4123, 4340, 4365, 4788, 5301, 5529, 5580, 5820, 5890, 5985, 6014, 6111, 6510, 6790, 7068, 7372, 7812, 7980, 8148, 8246, 8730, 8835, 9021, 9215, 9765, 10185, 10602, 11058, 11780, 11970, 12028, 12222, 12369, 12901, 13020, 13580, 15035, 16492, 16587, 17460, 17670, 18042, 18430, 19530, 20370, 20615, 21049, 21204, 22116, 23940, 24444, 24738, 25802, 26505, 27063, 27645, 30070, 30555, 33174, 35340, 36084, 36860, 37107, 38703, 39060, 40740, 41230, 42098, 45105, 49476, 51604, 53010, 54126, 55290, 57133, 60140, 61110, 61845, 63147, 64505, 66348, 74214, 77406, 82460, 82935, 84196, 90210, 105245, 106020, 108252, 110580, 114266, 116109, 122220, 123690, 126294, 129010, 135315, 148428, 154812, 165870, 171399, 180420, 185535, 189441, 193515, 210490, 228532, 232218, 247380, 252588, 258020, 270630, 285665, 315735, 331740, 342798, 371070, 378882, 387030, 399931, 420980, 464436, 514197, 541260, 571330, 580545, 631470, 685596, 742140, 757764, 774060, 799862, 856995, 947205, 1028394, 1142660, 1161090, 1199793, 1262940, 1599724, 1713990, 1894410, 1999655, 2056788, 2322180, 2399586, 2570985, 3427980, 3599379, 3788820, 3999310, 4799172, 5141970, 5998965, 7198758, 7998620, 10283940, 11997930, 14397516, 17996895, 23995860, 35993790, 71987580]

約数ペア:

[(1, 71987580), (2, 35993790), (3, 23995860), (4, 17996895), (5, 14397516), (6, 11997930), (7, 10283940), (9, 7998620), (10, 7198758), (12, 5998965), (14, 5141970), (15, 4799172), (18, 3999310), (19, 3788820), (20, 3599379), (21, 3427980), (28, 2570985), (30, 2399586), (31, 2322180), (35, 2056788), (36, 1999655), (38, 1894410), (42, 1713990), (45, 1599724), (57, 1262940), (60, 1199793), (62, 1161090), (63, 1142660), (70, 1028394), (76, 947205), (84, 856995), (90, 799862), (93, 774060), (95, 757764), (97, 742140), (105, 685596), (114, 631470), (124, 580545), (126, 571330), (133, 541260), (140, 514197), (155, 464436), (171, 420980), (180, 399931), (186, 387030), (190, 378882), (194, 371070), (210, 342798), (217, 331740), (228, 315735), (252, 285665), (266, 270630), (279, 258020), (285, 252588), (291, 247380), (310, 232218), (315, 228532), (342, 210490), (372, 193515), (380, 189441), (388, 185535), (399, 180420), (420, 171399), (434, 165870), (465, 154812), (485, 148428), (532, 135315), (558, 129010), (570, 126294), (582, 123690), (589, 122220), (620, 116109), (630, 114266), (651, 110580), (665, 108252), (679, 106020), (684, 105245), (798, 90210), (855, 84196), (868, 82935), (873, 82460), (930, 77406), (970, 74214), (1085, 66348), (1116, 64505), (1140, 63147), (1164, 61845), (1178, 61110), (1197, 60140), (1260, 57133), (1302, 55290), (1330, 54126), (1358, 53010), (1395, 51604), (1455, 49476), (1596, 45105), (1710, 42098), (1746, 41230), (1767, 40740), (1843, 39060), (1860, 38703), (1940, 37107), (1953, 36860), (1995, 36084), (2037, 35340), (2170, 33174), (2356, 30555), (2394, 30070), (2604, 27645), (2660, 27063), (2716, 26505), (2790, 25802), (2910, 24738), (2945, 24444), (3007, 23940), (3255, 22116), (3395, 21204), (3420, 21049), (3492, 20615), (3534, 20370), (3686, 19530), (3906, 18430), (3990, 18042), (4074, 17670), (4123, 17460), (4340, 16587), (4365, 16492), (4788, 15035), (5301, 13580), (5529, 13020), (5580, 12901), (5820, 12369), (5890, 12222), (5985, 12028), (6014, 11970), (6111, 11780), (6510, 11058), (6790, 10602), (7068, 10185), (7372, 9765), (7812, 9215), (7980, 9021), (8148, 8835), (8246, 8730)]