64865875

素因数分解:

$5^3\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:304

約数の個数: 32

約数和(自身を含む): 84494592

約数和(自身を除く): 19628717

約数列:

[1, 5, 25, 47, 61, 125, 181, 235, 305, 905, 1175, 1525, 2867, 4525, 5875, 7625, 8507, 11041, 14335, 22625, 42535, 55205, 71675, 212675, 276025, 358375, 518927, 1063375, 1380125, 2594635, 12973175, 64865875]

約数ペア:

[(1, 64865875), (5, 12973175), (25, 2594635), (47, 1380125), (61, 1063375), (125, 518927), (181, 358375), (235, 276025), (305, 212675), (905, 71675), (1175, 55205), (1525, 42535), (2867, 22625), (4525, 14335), (5875, 11041), (7625, 8507)]