18945420

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{227}}^1$

素因数の和:359

約数の個数: 96

約数和(自身を含む): 57915648

約数和(自身を除く): 38970228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 107, 130, 156, 195, 214, 227, 260, 321, 390, 428, 454, 535, 642, 681, 780, 908, 1070, 1135, 1284, 1362, 1391, 1605, 2140, 2270, 2724, 2782, 2951, 3210, 3405, 4173, 4540, 5564, 5902, 6420, 6810, 6955, 8346, 8853, 11804, 13620, 13910, 14755, 16692, 17706, 20865, 24289, 27820, 29510, 35412, 41730, 44265, 48578, 59020, 72867, 83460, 88530, 97156, 121445, 145734, 177060, 242890, 291468, 315757, 364335, 485780, 631514, 728670, 947271, 1263028, 1457340, 1578785, 1894542, 3157570, 3789084, 4736355, 6315140, 9472710, 18945420]

約数ペア:

[(1, 18945420), (2, 9472710), (3, 6315140), (4, 4736355), (5, 3789084), (6, 3157570), (10, 1894542), (12, 1578785), (13, 1457340), (15, 1263028), (20, 947271), (26, 728670), (30, 631514), (39, 485780), (52, 364335), (60, 315757), (65, 291468), (78, 242890), (107, 177060), (130, 145734), (156, 121445), (195, 97156), (214, 88530), (227, 83460), (260, 72867), (321, 59020), (390, 48578), (428, 44265), (454, 41730), (535, 35412), (642, 29510), (681, 27820), (780, 24289), (908, 20865), (1070, 17706), (1135, 16692), (1284, 14755), (1362, 13910), (1391, 13620), (1605, 11804), (2140, 8853), (2270, 8346), (2724, 6955), (2782, 6810), (2951, 6420), (3210, 5902), (3405, 5564), (4173, 4540)]