54117940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{457}}^1$

素因数の和:688

約数の個数: 48

約数和(自身を含む): 118185984

約数和(自身を除く): 64068044

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 191, 310, 382, 457, 620, 764, 914, 955, 1828, 1910, 2285, 3820, 4570, 5921, 9140, 11842, 14167, 23684, 28334, 29605, 56668, 59210, 70835, 87287, 118420, 141670, 174574, 283340, 349148, 436435, 872870, 1745740, 2705897, 5411794, 10823588, 13529485, 27058970, 54117940]

約数ペア:

[(1, 54117940), (2, 27058970), (4, 13529485), (5, 10823588), (10, 5411794), (20, 2705897), (31, 1745740), (62, 872870), (124, 436435), (155, 349148), (191, 283340), (310, 174574), (382, 141670), (457, 118420), (620, 87287), (764, 70835), (914, 59210), (955, 56668), (1828, 29605), (1910, 28334), (2285, 23684), (3820, 14167), (4570, 11842), (5921, 9140)]