12521560

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4409}}^1$

素因数の和:4491

約数の個数: 32

約数和(自身を含む): 28576800

約数和(自身を除く): 16055240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 4409, 8818, 17636, 22045, 35272, 44090, 88180, 176360, 313039, 626078, 1252156, 1565195, 2504312, 3130390, 6260780, 12521560]

約数ペア:

[(1, 12521560), (2, 6260780), (4, 3130390), (5, 2504312), (8, 1565195), (10, 1252156), (20, 626078), (40, 313039), (71, 176360), (142, 88180), (284, 44090), (355, 35272), (568, 22045), (710, 17636), (1420, 8818), (2840, 4409)]