17620780

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12409}}^1$

素因数の和:12489

約数の個数: 24

約数和(自身を含む): 37527840

約数和(自身を除く): 19907060

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12409, 24818, 49636, 62045, 124090, 248180, 881039, 1762078, 3524156, 4405195, 8810390, 17620780]

約数ペア:

[(1, 17620780), (2, 8810390), (4, 4405195), (5, 3524156), (10, 1762078), (20, 881039), (71, 248180), (142, 124090), (284, 62045), (355, 49636), (710, 24818), (1420, 12409)]