72673820

素因数分解:

$2^2\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{2819}}^1$

素因数の和:4117

約数の個数: 24

約数和(自身を含む): 152787600

約数和(自身を除く): 80113780

約数列:

[1, 2, 4, 5, 10, 20, 1289, 2578, 2819, 5156, 5638, 6445, 11276, 12890, 14095, 25780, 28190, 56380, 3633691, 7267382, 14534764, 18168455, 36336910, 72673820]

約数ペア:

[(1, 72673820), (2, 36336910), (4, 18168455), (5, 14534764), (10, 7267382), (20, 3633691), (1289, 56380), (2578, 28190), (2819, 25780), (5156, 14095), (5638, 12890), (6445, 11276)]