31077280

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1$

素因数の和:318

約数の個数: 96

約数和(自身を含む): 80607744

約数和(自身を除く): 49530464

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 65, 67, 80, 104, 130, 134, 160, 208, 223, 260, 268, 335, 416, 446, 520, 536, 670, 871, 892, 1040, 1072, 1115, 1340, 1742, 1784, 2080, 2144, 2230, 2680, 2899, 3484, 3568, 4355, 4460, 5360, 5798, 6968, 7136, 8710, 8920, 10720, 11596, 13936, 14495, 14941, 17420, 17840, 23192, 27872, 28990, 29882, 34840, 35680, 46384, 57980, 59764, 69680, 74705, 92768, 115960, 119528, 139360, 149410, 194233, 231920, 239056, 298820, 388466, 463840, 478112, 597640, 776932, 971165, 1195280, 1553864, 1942330, 2390560, 3107728, 3884660, 6215456, 7769320, 15538640, 31077280]

約数ペア:

[(1, 31077280), (2, 15538640), (4, 7769320), (5, 6215456), (8, 3884660), (10, 3107728), (13, 2390560), (16, 1942330), (20, 1553864), (26, 1195280), (32, 971165), (40, 776932), (52, 597640), (65, 478112), (67, 463840), (80, 388466), (104, 298820), (130, 239056), (134, 231920), (160, 194233), (208, 149410), (223, 139360), (260, 119528), (268, 115960), (335, 92768), (416, 74705), (446, 69680), (520, 59764), (536, 57980), (670, 46384), (871, 35680), (892, 34840), (1040, 29882), (1072, 28990), (1115, 27872), (1340, 23192), (1742, 17840), (1784, 17420), (2080, 14941), (2144, 14495), (2230, 13936), (2680, 11596), (2899, 10720), (3484, 8920), (3568, 8710), (4355, 7136), (4460, 6968), (5360, 5798)]