31179320

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{3917}}^1$

素因数の和:4127

約数の個数: 32

約数和(自身を含む): 70524000

約数和(自身を除く): 39344680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 3917, 3980, 7834, 7960, 15668, 19585, 31336, 39170, 78340, 156680, 779483, 1558966, 3117932, 3897415, 6235864, 7794830, 15589660, 31179320]

約数ペア:

[(1, 31179320), (2, 15589660), (4, 7794830), (5, 6235864), (8, 3897415), (10, 3117932), (20, 1558966), (40, 779483), (199, 156680), (398, 78340), (796, 39170), (995, 31336), (1592, 19585), (1990, 15668), (3917, 7960), (3980, 7834)]