13285240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1669}}^1$

素因数の和:1879

約数の個数: 32

約数和(自身を含む): 30060000

約数和(自身を除く): 16774760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1669, 1990, 3338, 3980, 6676, 7960, 8345, 13352, 16690, 33380, 66760, 332131, 664262, 1328524, 1660655, 2657048, 3321310, 6642620, 13285240]

約数ペア:

[(1, 13285240), (2, 6642620), (4, 3321310), (5, 2657048), (8, 1660655), (10, 1328524), (20, 664262), (40, 332131), (199, 66760), (398, 33380), (796, 16690), (995, 13352), (1592, 8345), (1669, 7960), (1990, 6676), (3338, 3980)]