20004490

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{6271}}^1$

素因数の和:6318

約数の個数: 32

約数和(自身を含む): 40642560

約数和(自身を除く): 20638070

約数列:

[1, 2, 5, 10, 11, 22, 29, 55, 58, 110, 145, 290, 319, 638, 1595, 3190, 6271, 12542, 31355, 62710, 68981, 137962, 181859, 344905, 363718, 689810, 909295, 1818590, 2000449, 4000898, 10002245, 20004490]

約数ペア:

[(1, 20004490), (2, 10002245), (5, 4000898), (10, 2000449), (11, 1818590), (22, 909295), (29, 689810), (55, 363718), (58, 344905), (110, 181859), (145, 137962), (290, 68981), (319, 62710), (638, 31355), (1595, 12542), (3190, 6271)]