81430255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{131}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 106748928

約数和(自身を除く): 25318673

約数列:

[1, 5, 17, 71, 85, 103, 131, 355, 515, 655, 1207, 1751, 2227, 6035, 7313, 8755, 9301, 11135, 13493, 36565, 46505, 67465, 124321, 158117, 229381, 621605, 790585, 958003, 1146905, 4790015, 16286051, 81430255]

約数ペア:

[(1, 81430255), (5, 16286051), (17, 4790015), (71, 1146905), (85, 958003), (103, 790585), (131, 621605), (355, 229381), (515, 158117), (655, 124321), (1207, 67465), (1751, 46505), (2227, 36565), (6035, 13493), (7313, 11135), (8755, 9301)]