15888945820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{639137}}^1$

素因数の和:639270

約数の個数: 48

約数和(自身を含む): 36722312928

約数和(自身を除く): 20833367108

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 113, 220, 226, 452, 565, 1130, 1243, 2260, 2486, 4972, 6215, 12430, 24860, 639137, 1278274, 2556548, 3195685, 6391370, 7030507, 12782740, 14061014, 28122028, 35152535, 70305070, 72222481, 140610140, 144444962, 288889924, 361112405, 722224810, 794447291, 1444449620, 1588894582, 3177789164, 3972236455, 7944472910, 15888945820]

約数ペア:

[(1, 15888945820), (2, 7944472910), (4, 3972236455), (5, 3177789164), (10, 1588894582), (11, 1444449620), (20, 794447291), (22, 722224810), (44, 361112405), (55, 288889924), (110, 144444962), (113, 140610140), (220, 72222481), (226, 70305070), (452, 35152535), (565, 28122028), (1130, 14061014), (1243, 12782740), (2260, 7030507), (2486, 6391370), (4972, 3195685), (6215, 2556548), (12430, 1278274), (24860, 639137)]