18297640

素因数分解:

$2^3\times 5^1\times {\mathrm{619}}^1\times {\mathrm{739}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 41292000

約数和(自身を除く): 22994360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 619, 739, 1238, 1478, 2476, 2956, 3095, 3695, 4952, 5912, 6190, 7390, 12380, 14780, 24760, 29560, 457441, 914882, 1829764, 2287205, 3659528, 4574410, 9148820, 18297640]

約数ペア:

[(1, 18297640), (2, 9148820), (4, 4574410), (5, 3659528), (8, 2287205), (10, 1829764), (20, 914882), (40, 457441), (619, 29560), (739, 24760), (1238, 14780), (1478, 12380), (2476, 7390), (2956, 6190), (3095, 5912), (3695, 4952)]