72473540

素因数分解:

$2^2\times 5^1\times {\mathrm{1663}}^1\times {\mathrm{2179}}^1$

素因数の和:3851

約数の個数: 24

約数和(自身を含む): 152355840

約数和(自身を除く): 79882300

約数列:

[1, 2, 4, 5, 10, 20, 1663, 2179, 3326, 4358, 6652, 8315, 8716, 10895, 16630, 21790, 33260, 43580, 3623677, 7247354, 14494708, 18118385, 36236770, 72473540]

約数ペア:

[(1, 72473540), (2, 36236770), (4, 18118385), (5, 14494708), (10, 7247354), (20, 3623677), (1663, 43580), (2179, 33260), (3326, 21790), (4358, 16630), (6652, 10895), (8315, 8716)]