2049820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{907}}^1$

素因数の和:1029

約数の個数: 24

約数和(自身を含む): 4347504

約数和(自身を除く): 2297684

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 907, 1130, 1814, 2260, 3628, 4535, 9070, 18140, 102491, 204982, 409964, 512455, 1024910, 2049820]

約数ペア:

[(1, 2049820), (2, 1024910), (4, 512455), (5, 409964), (10, 204982), (20, 102491), (113, 18140), (226, 9070), (452, 4535), (565, 3628), (907, 2260), (1130, 1814)]