20121378472

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{359}}^1\times {\mathrm{538927}}^1$

素因数の和:539305

約数の個数: 32

約数和(自身を含む): 40742956800

約数和(自身を除く): 20621578328

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 359, 718, 1436, 2872, 4667, 9334, 18668, 37336, 538927, 1077854, 2155708, 4311416, 7006051, 14012102, 28024204, 56048408, 193474793, 386949586, 773899172, 1547798344, 2515172309, 5030344618, 10060689236, 20121378472]

約数ペア:

[(1, 20121378472), (2, 10060689236), (4, 5030344618), (8, 2515172309), (13, 1547798344), (26, 773899172), (52, 386949586), (104, 193474793), (359, 56048408), (718, 28024204), (1436, 14012102), (2872, 7006051), (4667, 4311416), (9334, 2155708), (18668, 1077854), (37336, 538927)]