19387880

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{3253}}^1$

素因数の和:3413

約数の個数: 32

約数和(自身を含む): 43929000

約数和(自身を除く): 24541120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 745, 1192, 1490, 2980, 3253, 5960, 6506, 13012, 16265, 26024, 32530, 65060, 130120, 484697, 969394, 1938788, 2423485, 3877576, 4846970, 9693940, 19387880]

約数ペア:

[(1, 19387880), (2, 9693940), (4, 4846970), (5, 3877576), (8, 2423485), (10, 1938788), (20, 969394), (40, 484697), (149, 130120), (298, 65060), (596, 32530), (745, 26024), (1192, 16265), (1490, 13012), (2980, 6506), (3253, 5960)]