38317640

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{1951}}^1$

素因数の和:2453

約数の個数: 32

約数和(自身を含む): 86434560

約数和(自身を除く): 48116920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1951, 1964, 2455, 3902, 3928, 4910, 7804, 9755, 9820, 15608, 19510, 19640, 39020, 78040, 957941, 1915882, 3831764, 4789705, 7663528, 9579410, 19158820, 38317640]

約数ペア:

[(1, 38317640), (2, 19158820), (4, 9579410), (5, 7663528), (8, 4789705), (10, 3831764), (20, 1915882), (40, 957941), (491, 78040), (982, 39020), (1951, 19640), (1964, 19510), (2455, 15608), (3902, 9820), (3928, 9755), (4910, 7804)]