20007661505

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{2753}}^1\times {\mathrm{6577}}^1$

素因数の和:9365

約数の個数: 32

約数和(自身を含む): 27391107744

約数和(自身を除く): 7383446239

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 2753, 6577, 13765, 32885, 35789, 46801, 85501, 111809, 178945, 234005, 427505, 559045, 608413, 1453517, 3042065, 7267585, 18106481, 90532405, 235384253, 307810177, 1176921265, 1539050885, 4001532301, 20007661505]

約数ペア:

[(1, 20007661505), (5, 4001532301), (13, 1539050885), (17, 1176921265), (65, 307810177), (85, 235384253), (221, 90532405), (1105, 18106481), (2753, 7267585), (6577, 3042065), (13765, 1453517), (32885, 608413), (35789, 559045), (46801, 427505), (85501, 234005), (111809, 178945)]