66439240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{237283}}^1$

素因数の和:237301

約数の個数: 32

約数和(自身を含む): 170844480

約数和(自身を除く): 104405240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 237283, 474566, 949132, 1186415, 1660981, 1898264, 2372830, 3321962, 4745660, 6643924, 8304905, 9491320, 13287848, 16609810, 33219620, 66439240]

約数ペア:

[(1, 66439240), (2, 33219620), (4, 16609810), (5, 13287848), (7, 9491320), (8, 8304905), (10, 6643924), (14, 4745660), (20, 3321962), (28, 2372830), (35, 1898264), (40, 1660981), (56, 1186415), (70, 949132), (140, 474566), (280, 237283)]