39887780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{103}}^1$

素因数の和:213

約数の個数: 72

約数和(自身を含む): 91186368

約数和(自身を除く): 51298588

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 67, 68, 85, 103, 134, 170, 206, 268, 289, 335, 340, 412, 515, 578, 670, 1030, 1139, 1156, 1340, 1445, 1751, 2060, 2278, 2890, 3502, 4556, 5695, 5780, 6901, 7004, 8755, 11390, 13802, 17510, 19363, 22780, 27604, 29767, 34505, 35020, 38726, 59534, 69010, 77452, 96815, 117317, 119068, 138020, 148835, 193630, 234634, 297670, 387260, 469268, 586585, 595340, 1173170, 1994389, 2346340, 3988778, 7977556, 9971945, 19943890, 39887780]

約数ペア:

[(1, 39887780), (2, 19943890), (4, 9971945), (5, 7977556), (10, 3988778), (17, 2346340), (20, 1994389), (34, 1173170), (67, 595340), (68, 586585), (85, 469268), (103, 387260), (134, 297670), (170, 234634), (206, 193630), (268, 148835), (289, 138020), (335, 119068), (340, 117317), (412, 96815), (515, 77452), (578, 69010), (670, 59534), (1030, 38726), (1139, 35020), (1156, 34505), (1340, 29767), (1445, 27604), (1751, 22780), (2060, 19363), (2278, 17510), (2890, 13802), (3502, 11390), (4556, 8755), (5695, 7004), (5780, 6901)]