261657360

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{617}}^1$

素因数の和:686

約数の個数: 240

約数和(自身を含む): 956367360

約数和(自身を除く): 694710000

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 19, 20, 24, 30, 31, 36, 38, 40, 45, 48, 57, 60, 62, 72, 76, 80, 90, 93, 95, 114, 120, 124, 144, 152, 155, 171, 180, 186, 190, 228, 240, 248, 279, 285, 304, 310, 342, 360, 372, 380, 456, 465, 496, 558, 570, 589, 617, 620, 684, 720, 744, 760, 855, 912, 930, 1116, 1140, 1178, 1234, 1240, 1368, 1395, 1488, 1520, 1710, 1767, 1851, 1860, 2232, 2280, 2356, 2468, 2480, 2736, 2790, 2945, 3085, 3420, 3534, 3702, 3720, 4464, 4560, 4712, 4936, 5301, 5553, 5580, 5890, 6170, 6840, 7068, 7404, 7440, 8835, 9255, 9424, 9872, 10602, 11106, 11160, 11723, 11780, 12340, 13680, 14136, 14808, 17670, 18510, 19127, 21204, 22212, 22320, 23446, 23560, 24680, 26505, 27765, 28272, 29616, 35169, 35340, 37020, 38254, 42408, 44424, 46892, 47120, 49360, 53010, 55530, 57381, 58615, 70338, 70680, 74040, 76508, 84816, 88848, 93784, 95635, 105507, 106020, 111060, 114762, 117230, 140676, 141360, 148080, 153016, 172143, 175845, 187568, 191270, 211014, 212040, 222120, 229524, 234460, 281352, 286905, 306032, 344286, 351690, 363413, 382540, 422028, 424080, 444240, 459048, 468920, 527535, 562704, 573810, 688572, 703380, 726826, 765080, 844056, 860715, 918096, 937840, 1055070, 1090239, 1147620, 1377144, 1406760, 1453652, 1530160, 1688112, 1721430, 1817065, 2110140, 2180478, 2295240, 2754288, 2813520, 2907304, 3270717, 3442860, 3634130, 4220280, 4360956, 4590480, 5451195, 5814608, 6541434, 6885720, 7268260, 8440560, 8721912, 10902390, 13082868, 13771440, 14536520, 16353585, 17443824, 21804780, 26165736, 29073040, 32707170, 43609560, 52331472, 65414340, 87219120, 130828680, 261657360]

約数ペア:

[(1, 261657360), (2, 130828680), (3, 87219120), (4, 65414340), (5, 52331472), (6, 43609560), (8, 32707170), (9, 29073040), (10, 26165736), (12, 21804780), (15, 17443824), (16, 16353585), (18, 14536520), (19, 13771440), (20, 13082868), (24, 10902390), (30, 8721912), (31, 8440560), (36, 7268260), (38, 6885720), (40, 6541434), (45, 5814608), (48, 5451195), (57, 4590480), (60, 4360956), (62, 4220280), (72, 3634130), (76, 3442860), (80, 3270717), (90, 2907304), (93, 2813520), (95, 2754288), (114, 2295240), (120, 2180478), (124, 2110140), (144, 1817065), (152, 1721430), (155, 1688112), (171, 1530160), (180, 1453652), (186, 1406760), (190, 1377144), (228, 1147620), (240, 1090239), (248, 1055070), (279, 937840), (285, 918096), (304, 860715), (310, 844056), (342, 765080), (360, 726826), (372, 703380), (380, 688572), (456, 573810), (465, 562704), (496, 527535), (558, 468920), (570, 459048), (589, 444240), (617, 424080), (620, 422028), (684, 382540), (720, 363413), (744, 351690), (760, 344286), (855, 306032), (912, 286905), (930, 281352), (1116, 234460), (1140, 229524), (1178, 222120), (1234, 212040), (1240, 211014), (1368, 191270), (1395, 187568), (1488, 175845), (1520, 172143), (1710, 153016), (1767, 148080), (1851, 141360), (1860, 140676), (2232, 117230), (2280, 114762), (2356, 111060), (2468, 106020), (2480, 105507), (2736, 95635), (2790, 93784), (2945, 88848), (3085, 84816), (3420, 76508), (3534, 74040), (3702, 70680), (3720, 70338), (4464, 58615), (4560, 57381), (4712, 55530), (4936, 53010), (5301, 49360), (5553, 47120), (5580, 46892), (5890, 44424), (6170, 42408), (6840, 38254), (7068, 37020), (7404, 35340), (7440, 35169), (8835, 29616), (9255, 28272), (9424, 27765), (9872, 26505), (10602, 24680), (11106, 23560), (11160, 23446), (11723, 22320), (11780, 22212), (12340, 21204), (13680, 19127), (14136, 18510), (14808, 17670)]