2538820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{2081}}^1$

素因数の和:2151

約数の個数: 24

約数和(自身を含む): 5421528

約数和(自身を除く): 2882708

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 2081, 4162, 8324, 10405, 20810, 41620, 126941, 253882, 507764, 634705, 1269410, 2538820]

約数ペア:

[(1, 2538820), (2, 1269410), (4, 634705), (5, 507764), (10, 253882), (20, 126941), (61, 41620), (122, 20810), (244, 10405), (305, 8324), (610, 4162), (1220, 2081)]