720720275

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{16693}}^1$

素因数の和:16871

約数の個数: 24

約数和(自身を含む): 981206544

約数和(自身を除く): 260486269

約数列:

[1, 5, 11, 25, 55, 157, 275, 785, 1727, 3925, 8635, 16693, 43175, 83465, 183623, 417325, 918115, 2620801, 4590575, 13104005, 28828811, 65520025, 144144055, 720720275]

約数ペア:

[(1, 720720275), (5, 144144055), (11, 65520025), (25, 28828811), (55, 13104005), (157, 4590575), (275, 2620801), (785, 918115), (1727, 417325), (3925, 183623), (8635, 83465), (16693, 43175)]