31815080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{72307}}^1$

素因数の和:72329

約数の個数: 32

約数和(自身を含む): 78092640

約数和(自身を除く): 46277560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 72307, 144614, 289228, 361535, 578456, 723070, 795377, 1446140, 1590754, 2892280, 3181508, 3976885, 6363016, 7953770, 15907540, 31815080]

約数ペア:

[(1, 31815080), (2, 15907540), (4, 7953770), (5, 6363016), (8, 3976885), (10, 3181508), (11, 2892280), (20, 1590754), (22, 1446140), (40, 795377), (44, 723070), (55, 578456), (88, 361535), (110, 289228), (220, 144614), (440, 72307)]