31113260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1997}}^1$

素因数の和:2066

約数の個数: 48

約数和(自身を含む): 70489440

約数和(自身を除く): 39376180

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 41, 76, 82, 95, 164, 190, 205, 380, 410, 779, 820, 1558, 1997, 3116, 3895, 3994, 7790, 7988, 9985, 15580, 19970, 37943, 39940, 75886, 81877, 151772, 163754, 189715, 327508, 379430, 409385, 758860, 818770, 1555663, 1637540, 3111326, 6222652, 7778315, 15556630, 31113260]

約数ペア:

[(1, 31113260), (2, 15556630), (4, 7778315), (5, 6222652), (10, 3111326), (19, 1637540), (20, 1555663), (38, 818770), (41, 758860), (76, 409385), (82, 379430), (95, 327508), (164, 189715), (190, 163754), (205, 151772), (380, 81877), (410, 75886), (779, 39940), (820, 37943), (1558, 19970), (1997, 15580), (3116, 9985), (3895, 7988), (3994, 7790)]