402042020

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{74729}}^1$

素因数の和:75007

約数の個数: 24

約数和(自身を含む): 847438200

約数和(自身を除く): 445396180

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 74729, 149458, 298916, 373645, 747290, 1494580, 20102101, 40204202, 80408404, 100510505, 201021010, 402042020]

約数ペア:

[(1, 402042020), (2, 201021010), (4, 100510505), (5, 80408404), (10, 40204202), (20, 20102101), (269, 1494580), (538, 747290), (1076, 373645), (1345, 298916), (2690, 149458), (5380, 74729)]