19726945

素因数分解:

$5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{233}}^1$

素因数の和:345

約数の個数: 32

約数和(自身を含む): 28304640

約数和(自身を除く): 8577695

約数列:

[1, 5, 7, 35, 41, 59, 205, 233, 287, 295, 413, 1165, 1435, 1631, 2065, 2419, 8155, 9553, 12095, 13747, 16933, 47765, 66871, 68735, 84665, 96229, 334355, 481145, 563627, 2818135, 3945389, 19726945]

約数ペア:

[(1, 19726945), (5, 3945389), (7, 2818135), (35, 563627), (41, 481145), (59, 334355), (205, 96229), (233, 84665), (287, 68735), (295, 66871), (413, 47765), (1165, 16933), (1435, 13747), (1631, 12095), (2065, 9553), (2419, 8155)]