66805360

素因数分解:

$2^4\times 5^1\times {\mathrm{419}}^1\times {\mathrm{1993}}^1$

素因数の和:2425

約数の個数: 40

約数和(自身を含む): 155771280

約数和(自身を除く): 88965920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 419, 838, 1676, 1993, 2095, 3352, 3986, 4190, 6704, 7972, 8380, 9965, 15944, 16760, 19930, 31888, 33520, 39860, 79720, 159440, 835067, 1670134, 3340268, 4175335, 6680536, 8350670, 13361072, 16701340, 33402680, 66805360]

約数ペア:

[(1, 66805360), (2, 33402680), (4, 16701340), (5, 13361072), (8, 8350670), (10, 6680536), (16, 4175335), (20, 3340268), (40, 1670134), (80, 835067), (419, 159440), (838, 79720), (1676, 39860), (1993, 33520), (2095, 31888), (3352, 19930), (3986, 16760), (4190, 15944), (6704, 9965), (7972, 8380)]