31911260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{1063}}^1$

素因数の和:1170

約数の個数: 48

約数和(自身を含む): 71500800

約数和(自身を除く): 39589540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 79, 95, 158, 190, 316, 380, 395, 790, 1063, 1501, 1580, 2126, 3002, 4252, 5315, 6004, 7505, 10630, 15010, 20197, 21260, 30020, 40394, 80788, 83977, 100985, 167954, 201970, 335908, 403940, 419885, 839770, 1595563, 1679540, 3191126, 6382252, 7977815, 15955630, 31911260]

約数ペア:

[(1, 31911260), (2, 15955630), (4, 7977815), (5, 6382252), (10, 3191126), (19, 1679540), (20, 1595563), (38, 839770), (76, 419885), (79, 403940), (95, 335908), (158, 201970), (190, 167954), (316, 100985), (380, 83977), (395, 80788), (790, 40394), (1063, 30020), (1501, 21260), (1580, 20197), (2126, 15010), (3002, 10630), (4252, 7505), (5315, 6004)]