18128980

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3203}}^1$

素因数の和:3495

約数の個数: 24

約数和(自身を含む): 38217312

約数和(自身を除く): 20088332

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3203, 5660, 6406, 12812, 16015, 32030, 64060, 906449, 1812898, 3625796, 4532245, 9064490, 18128980]

約数ペア:

[(1, 18128980), (2, 9064490), (4, 4532245), (5, 3625796), (10, 1812898), (20, 906449), (283, 64060), (566, 32030), (1132, 16015), (1415, 12812), (2830, 6406), (3203, 5660)]