131499620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{1913}}^1$

素因数の和:2420

約数の個数: 48

約数和(自身を含む): 316407168

約数和(自身を除く): 184907548

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 491, 982, 1913, 1964, 2455, 3437, 3826, 4910, 6874, 7652, 9565, 9820, 13391, 13748, 17185, 19130, 26782, 34370, 38260, 53564, 66955, 68740, 133910, 267820, 939283, 1878566, 3757132, 4696415, 6574981, 9392830, 13149962, 18785660, 26299924, 32874905, 65749810, 131499620]

約数ペア:

[(1, 131499620), (2, 65749810), (4, 32874905), (5, 26299924), (7, 18785660), (10, 13149962), (14, 9392830), (20, 6574981), (28, 4696415), (35, 3757132), (70, 1878566), (140, 939283), (491, 267820), (982, 133910), (1913, 68740), (1964, 66955), (2455, 53564), (3437, 38260), (3826, 34370), (4910, 26782), (6874, 19130), (7652, 17185), (9565, 13748), (9820, 13391)]