4000865

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{389}}^1$

素因数の和:433

約数の個数: 24

約数和(自身を含む): 5601960

約数和(自身を除く): 1601095

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 389, 605, 935, 1945, 2057, 4279, 6613, 10285, 21395, 33065, 47069, 72743, 235345, 363715, 800173, 4000865]

約数ペア:

[(1, 4000865), (5, 800173), (11, 363715), (17, 235345), (55, 72743), (85, 47069), (121, 33065), (187, 21395), (389, 10285), (605, 6613), (935, 4279), (1945, 2057)]