16681660

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{211}}^1$

素因数の和:346

約数の個数: 48

約数和(自身を含む): 36328320

約数和(自身を除く): 19646660

約数列:

[1, 2, 4, 5, 10, 20, 59, 67, 118, 134, 211, 236, 268, 295, 335, 422, 590, 670, 844, 1055, 1180, 1340, 2110, 3953, 4220, 7906, 12449, 14137, 15812, 19765, 24898, 28274, 39530, 49796, 56548, 62245, 70685, 79060, 124490, 141370, 248980, 282740, 834083, 1668166, 3336332, 4170415, 8340830, 16681660]

約数ペア:

[(1, 16681660), (2, 8340830), (4, 4170415), (5, 3336332), (10, 1668166), (20, 834083), (59, 282740), (67, 248980), (118, 141370), (134, 124490), (211, 79060), (236, 70685), (268, 62245), (295, 56548), (335, 49796), (422, 39530), (590, 28274), (670, 24898), (844, 19765), (1055, 15812), (1180, 14137), (1340, 12449), (2110, 7906), (3953, 4220)]