19852820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{2633}}^1$

素因数の和:2684

約数の個数: 48

約数和(自身を含む): 46463760

約数和(自身を除く): 26610940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 1508, 1885, 2633, 3770, 5266, 7540, 10532, 13165, 26330, 34229, 52660, 68458, 76357, 136916, 152714, 171145, 305428, 342290, 381785, 684580, 763570, 992641, 1527140, 1985282, 3970564, 4963205, 9926410, 19852820]

約数ペア:

[(1, 19852820), (2, 9926410), (4, 4963205), (5, 3970564), (10, 1985282), (13, 1527140), (20, 992641), (26, 763570), (29, 684580), (52, 381785), (58, 342290), (65, 305428), (116, 171145), (130, 152714), (145, 136916), (260, 76357), (290, 68458), (377, 52660), (580, 34229), (754, 26330), (1508, 13165), (1885, 10532), (2633, 7540), (3770, 5266)]