4407640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1091}}^1$

素因数の和:1203

約数の個数: 32

約数和(自身を含む): 10024560

約数和(自身を除く): 5616920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 1091, 2020, 2182, 4040, 4364, 5455, 8728, 10910, 21820, 43640, 110191, 220382, 440764, 550955, 881528, 1101910, 2203820, 4407640]

約数ペア:

[(1, 4407640), (2, 2203820), (4, 1101910), (5, 881528), (8, 550955), (10, 440764), (20, 220382), (40, 110191), (101, 43640), (202, 21820), (404, 10910), (505, 8728), (808, 5455), (1010, 4364), (1091, 4040), (2020, 2182)]