64930220

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{709}}^1$

素因数の和:978

約数の個数: 48

約数和(自身を含む): 144328800

約数和(自身を除く): 79398580

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 241, 380, 482, 709, 964, 1205, 1418, 2410, 2836, 3545, 4579, 4820, 7090, 9158, 13471, 14180, 18316, 22895, 26942, 45790, 53884, 67355, 91580, 134710, 170869, 269420, 341738, 683476, 854345, 1708690, 3246511, 3417380, 6493022, 12986044, 16232555, 32465110, 64930220]

約数ペア:

[(1, 64930220), (2, 32465110), (4, 16232555), (5, 12986044), (10, 6493022), (19, 3417380), (20, 3246511), (38, 1708690), (76, 854345), (95, 683476), (190, 341738), (241, 269420), (380, 170869), (482, 134710), (709, 91580), (964, 67355), (1205, 53884), (1418, 45790), (2410, 26942), (2836, 22895), (3545, 18316), (4579, 14180), (4820, 13471), (7090, 9158)]