31420740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{40283}}^1$

素因数の和:40308

約数の個数: 48

約数和(自身を含む): 94747968

約数和(自身を除く): 63327228

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 40283, 80566, 120849, 161132, 201415, 241698, 402830, 483396, 523679, 604245, 805660, 1047358, 1208490, 1571037, 2094716, 2416980, 2618395, 3142074, 5236790, 6284148, 7855185, 10473580, 15710370, 31420740]

約数ペア:

[(1, 31420740), (2, 15710370), (3, 10473580), (4, 7855185), (5, 6284148), (6, 5236790), (10, 3142074), (12, 2618395), (13, 2416980), (15, 2094716), (20, 1571037), (26, 1208490), (30, 1047358), (39, 805660), (52, 604245), (60, 523679), (65, 483396), (78, 402830), (130, 241698), (156, 201415), (195, 161132), (260, 120849), (390, 80566), (780, 40283)]