205130940

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{488407}}^1$

素因数の和:488426

約数の個数: 48

約数和(自身を含む): 656420352

約数和(自身を除く): 451289412

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 488407, 976814, 1465221, 1953628, 2442035, 2930442, 3418849, 4884070, 5860884, 6837698, 7326105, 9768140, 10256547, 13675396, 14652210, 17094245, 20513094, 29304420, 34188490, 41026188, 51282735, 68376980, 102565470, 205130940]

約数ペア:

[(1, 205130940), (2, 102565470), (3, 68376980), (4, 51282735), (5, 41026188), (6, 34188490), (7, 29304420), (10, 20513094), (12, 17094245), (14, 14652210), (15, 13675396), (20, 10256547), (21, 9768140), (28, 7326105), (30, 6837698), (35, 5860884), (42, 4884070), (60, 3418849), (70, 2930442), (84, 2442035), (105, 1953628), (140, 1465221), (210, 976814), (420, 488407)]