408021020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{157}}^1\times {\mathrm{11813}}^1$

素因数の和:11990

約数の個数: 48

約数和(自身を含む): 940772448

約数和(自身を除く): 532751428

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 157, 220, 314, 628, 785, 1570, 1727, 3140, 3454, 6908, 8635, 11813, 17270, 23626, 34540, 47252, 59065, 118130, 129943, 236260, 259886, 519772, 649715, 1299430, 1854641, 2598860, 3709282, 7418564, 9273205, 18546410, 20401051, 37092820, 40802102, 81604204, 102005255, 204010510, 408021020]

約数ペア:

[(1, 408021020), (2, 204010510), (4, 102005255), (5, 81604204), (10, 40802102), (11, 37092820), (20, 20401051), (22, 18546410), (44, 9273205), (55, 7418564), (110, 3709282), (157, 2598860), (220, 1854641), (314, 1299430), (628, 649715), (785, 519772), (1570, 259886), (1727, 236260), (3140, 129943), (3454, 118130), (6908, 59065), (8635, 47252), (11813, 34540), (17270, 23626)]