385965880

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1\times {\mathrm{859}}^1$

素因数の和:1156

約数の個数: 64

約数和(自身を含む): 891648000

約数和(自身を除く): 505682120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 239, 376, 470, 478, 859, 940, 956, 1195, 1718, 1880, 1912, 2390, 3436, 4295, 4780, 6872, 8590, 9560, 11233, 17180, 22466, 34360, 40373, 44932, 56165, 80746, 89864, 112330, 161492, 201865, 205301, 224660, 322984, 403730, 410602, 449320, 807460, 821204, 1026505, 1614920, 1642408, 2053010, 4106020, 8212040, 9649147, 19298294, 38596588, 48245735, 77193176, 96491470, 192982940, 385965880]

約数ペア:

[(1, 385965880), (2, 192982940), (4, 96491470), (5, 77193176), (8, 48245735), (10, 38596588), (20, 19298294), (40, 9649147), (47, 8212040), (94, 4106020), (188, 2053010), (235, 1642408), (239, 1614920), (376, 1026505), (470, 821204), (478, 807460), (859, 449320), (940, 410602), (956, 403730), (1195, 322984), (1718, 224660), (1880, 205301), (1912, 201865), (2390, 161492), (3436, 112330), (4295, 89864), (4780, 80746), (6872, 56165), (8590, 44932), (9560, 40373), (11233, 34360), (17180, 22466)]