29881820

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 64571808

約数和(自身を除く): 34689988

約数列:

[1, 2, 4, 5, 10, 20, 73, 97, 146, 194, 211, 292, 365, 388, 422, 485, 730, 844, 970, 1055, 1460, 1940, 2110, 4220, 7081, 14162, 15403, 20467, 28324, 30806, 35405, 40934, 61612, 70810, 77015, 81868, 102335, 141620, 154030, 204670, 308060, 409340, 1494091, 2988182, 5976364, 7470455, 14940910, 29881820]

約数ペア:

[(1, 29881820), (2, 14940910), (4, 7470455), (5, 5976364), (10, 2988182), (20, 1494091), (73, 409340), (97, 308060), (146, 204670), (194, 154030), (211, 141620), (292, 102335), (365, 81868), (388, 77015), (422, 70810), (485, 61612), (730, 40934), (844, 35405), (970, 30806), (1055, 28324), (1460, 20467), (1940, 15403), (2110, 14162), (4220, 7081)]