18883240

素因数分解:

$2^3\times 5^1\times {\mathrm{457}}^1\times {\mathrm{1033}}^1$

素因数の和:1501

約数の個数: 32

約数和(自身を含む): 42621480

約数和(自身を除く): 23738240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 457, 914, 1033, 1828, 2066, 2285, 3656, 4132, 4570, 5165, 8264, 9140, 10330, 18280, 20660, 41320, 472081, 944162, 1888324, 2360405, 3776648, 4720810, 9441620, 18883240]

約数ペア:

[(1, 18883240), (2, 9441620), (4, 4720810), (5, 3776648), (8, 2360405), (10, 1888324), (20, 944162), (40, 472081), (457, 41320), (914, 20660), (1033, 18280), (1828, 10330), (2066, 9140), (2285, 8264), (3656, 5165), (4132, 4570)]