20171979532

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{239}}^1\times {\mathrm{15413}}^1$

素因数の和:15730

約数の個数: 36

約数和(自身を含む): 36434996640

約数和(自身を除く): 16263017108

約数列:

[1, 2, 4, 37, 74, 148, 239, 478, 956, 1369, 2738, 5476, 8843, 15413, 17686, 30826, 35372, 61652, 327191, 570281, 654382, 1140562, 1308764, 2281124, 3683707, 7367414, 14734828, 21100397, 42200794, 84401588, 136297159, 272594318, 545188636, 5042994883, 10085989766, 20171979532]

約数ペア:

[(1, 20171979532), (2, 10085989766), (4, 5042994883), (37, 545188636), (74, 272594318), (148, 136297159), (239, 84401588), (478, 42200794), (956, 21100397), (1369, 14734828), (2738, 7367414), (5476, 3683707), (8843, 2281124), (15413, 1308764), (17686, 1140562), (30826, 654382), (35372, 570281), (61652, 327191)]