90728065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{103}}^1\times {\mathrm{241}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 119598336

約数和(自身を除く): 28870271

約数列:

[1, 5, 17, 43, 85, 103, 215, 241, 515, 731, 1205, 1751, 3655, 4097, 4429, 8755, 10363, 20485, 22145, 24823, 51815, 75293, 124115, 176171, 376465, 421991, 880855, 1067389, 2109955, 5336945, 18145613, 90728065]

約数ペア:

[(1, 90728065), (5, 18145613), (17, 5336945), (43, 2109955), (85, 1067389), (103, 880855), (215, 421991), (241, 376465), (515, 176171), (731, 124115), (1205, 75293), (1751, 51815), (3655, 24823), (4097, 22145), (4429, 20485), (8755, 10363)]