81910920

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{577}}^1$

素因数の和:624

約数の個数: 192

約数和(自身を含む): 304629120

約数和(自身を除く): 222718200

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 30, 35, 39, 40, 42, 52, 56, 60, 65, 70, 78, 84, 91, 104, 105, 120, 130, 140, 156, 168, 169, 182, 195, 210, 260, 273, 280, 312, 338, 364, 390, 420, 455, 507, 520, 546, 577, 676, 728, 780, 840, 845, 910, 1014, 1092, 1154, 1183, 1352, 1365, 1560, 1690, 1731, 1820, 2028, 2184, 2308, 2366, 2535, 2730, 2885, 3380, 3462, 3549, 3640, 4039, 4056, 4616, 4732, 5070, 5460, 5770, 5915, 6760, 6924, 7098, 7501, 8078, 8655, 9464, 10140, 10920, 11540, 11830, 12117, 13848, 14196, 15002, 16156, 17310, 17745, 20195, 20280, 22503, 23080, 23660, 24234, 28392, 30004, 32312, 34620, 35490, 37505, 40390, 45006, 47320, 48468, 52507, 60008, 60585, 69240, 70980, 75010, 80780, 90012, 96936, 97513, 105014, 112515, 121170, 141960, 150020, 157521, 161560, 180024, 195026, 210028, 225030, 242340, 262535, 292539, 300040, 315042, 390052, 420056, 450060, 484680, 487565, 525070, 585078, 630084, 682591, 780104, 787605, 900120, 975130, 1050140, 1170156, 1260168, 1365182, 1462695, 1575210, 1950260, 2047773, 2100280, 2340312, 2730364, 2925390, 3150420, 3412955, 3900520, 4095546, 5460728, 5850780, 6300840, 6825910, 8191092, 10238865, 11701560, 13651820, 16382184, 20477730, 27303640, 40955460, 81910920]

約数ペア:

[(1, 81910920), (2, 40955460), (3, 27303640), (4, 20477730), (5, 16382184), (6, 13651820), (7, 11701560), (8, 10238865), (10, 8191092), (12, 6825910), (13, 6300840), (14, 5850780), (15, 5460728), (20, 4095546), (21, 3900520), (24, 3412955), (26, 3150420), (28, 2925390), (30, 2730364), (35, 2340312), (39, 2100280), (40, 2047773), (42, 1950260), (52, 1575210), (56, 1462695), (60, 1365182), (65, 1260168), (70, 1170156), (78, 1050140), (84, 975130), (91, 900120), (104, 787605), (105, 780104), (120, 682591), (130, 630084), (140, 585078), (156, 525070), (168, 487565), (169, 484680), (182, 450060), (195, 420056), (210, 390052), (260, 315042), (273, 300040), (280, 292539), (312, 262535), (338, 242340), (364, 225030), (390, 210028), (420, 195026), (455, 180024), (507, 161560), (520, 157521), (546, 150020), (577, 141960), (676, 121170), (728, 112515), (780, 105014), (840, 97513), (845, 96936), (910, 90012), (1014, 80780), (1092, 75010), (1154, 70980), (1183, 69240), (1352, 60585), (1365, 60008), (1560, 52507), (1690, 48468), (1731, 47320), (1820, 45006), (2028, 40390), (2184, 37505), (2308, 35490), (2366, 34620), (2535, 32312), (2730, 30004), (2885, 28392), (3380, 24234), (3462, 23660), (3549, 23080), (3640, 22503), (4039, 20280), (4056, 20195), (4616, 17745), (4732, 17310), (5070, 16156), (5460, 15002), (5770, 14196), (5915, 13848), (6760, 12117), (6924, 11830), (7098, 11540), (7501, 10920), (8078, 10140), (8655, 9464)]