180131405

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{8443}}^1$

素因数の和:8716

約数の個数: 16

約数和(自身を含む): 229811904

約数和(自身を除く): 49680499

約数列:

[1, 5, 17, 85, 251, 1255, 4267, 8443, 21335, 42215, 143531, 717655, 2119193, 10595965, 36026281, 180131405]

約数ペア:

[(1, 180131405), (5, 36026281), (17, 10595965), (85, 2119193), (251, 717655), (1255, 143531), (4267, 42215), (8443, 21335)]