15509980

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1229}}^1$

素因数の和:1869

約数の個数: 24

約数和(自身を含む): 32649120

約数和(自身を除く): 17139140

約数列:

[1, 2, 4, 5, 10, 20, 631, 1229, 1262, 2458, 2524, 3155, 4916, 6145, 6310, 12290, 12620, 24580, 775499, 1550998, 3101996, 3877495, 7754990, 15509980]

約数ペア:

[(1, 15509980), (2, 7754990), (4, 3877495), (5, 3101996), (10, 1550998), (20, 775499), (631, 24580), (1229, 12620), (1262, 12290), (2458, 6310), (2524, 6145), (3155, 4916)]