2887820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{383}}^1$

素因数の和:434

約数の個数: 48

約数和(自身を含む): 6773760

約数和(自身を除く): 3885940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 383, 580, 754, 766, 1508, 1532, 1885, 1915, 3770, 3830, 4979, 7540, 7660, 9958, 11107, 19916, 22214, 24895, 44428, 49790, 55535, 99580, 111070, 144391, 222140, 288782, 577564, 721955, 1443910, 2887820]

約数ペア:

[(1, 2887820), (2, 1443910), (4, 721955), (5, 577564), (10, 288782), (13, 222140), (20, 144391), (26, 111070), (29, 99580), (52, 55535), (58, 49790), (65, 44428), (116, 24895), (130, 22214), (145, 19916), (260, 11107), (290, 9958), (377, 7660), (383, 7540), (580, 4979), (754, 3830), (766, 3770), (1508, 1915), (1532, 1885)]