40278320

素因数分解:

$2^4\times 5^1\times {\mathrm{409}}^1\times {\mathrm{1231}}^1$

素因数の和:1653

約数の個数: 40

約数和(自身を含む): 93952320

約数和(自身を除く): 53674000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 409, 818, 1231, 1636, 2045, 2462, 3272, 4090, 4924, 6155, 6544, 8180, 9848, 12310, 16360, 19696, 24620, 32720, 49240, 98480, 503479, 1006958, 2013916, 2517395, 4027832, 5034790, 8055664, 10069580, 20139160, 40278320]

約数ペア:

[(1, 40278320), (2, 20139160), (4, 10069580), (5, 8055664), (8, 5034790), (10, 4027832), (16, 2517395), (20, 2013916), (40, 1006958), (80, 503479), (409, 98480), (818, 49240), (1231, 32720), (1636, 24620), (2045, 19696), (2462, 16360), (3272, 12310), (4090, 9848), (4924, 8180), (6155, 6544)]