155121715

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{557}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 218021760

約数和(自身を除く): 62900045

約数列:

[1, 5, 7, 35, 73, 109, 365, 511, 545, 557, 763, 2555, 2785, 3815, 3899, 7957, 19495, 39785, 40661, 55699, 60713, 203305, 278495, 284627, 303565, 424991, 1423135, 2124955, 4432049, 22160245, 31024343, 155121715]

約数ペア:

[(1, 155121715), (5, 31024343), (7, 22160245), (35, 4432049), (73, 2124955), (109, 1423135), (365, 424991), (511, 303565), (545, 284627), (557, 278495), (763, 203305), (2555, 60713), (2785, 55699), (3815, 40661), (3899, 39785), (7957, 19495)]