84728440

素因数分解:

$2^3\times 5^1\times {\mathrm{409}}^1\times {\mathrm{5179}}^1$

素因数の和:5599

約数の個数: 32

約数和(自身を含む): 191142000

約数和(自身を除く): 106413560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 409, 818, 1636, 2045, 3272, 4090, 5179, 8180, 10358, 16360, 20716, 25895, 41432, 51790, 103580, 207160, 2118211, 4236422, 8472844, 10591055, 16945688, 21182110, 42364220, 84728440]

約数ペア:

[(1, 84728440), (2, 42364220), (4, 21182110), (5, 16945688), (8, 10591055), (10, 8472844), (20, 4236422), (40, 2118211), (409, 207160), (818, 103580), (1636, 51790), (2045, 41432), (3272, 25895), (4090, 20716), (5179, 16360), (8180, 10358)]