280809340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{977}}^1\times {\mathrm{2053}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 674960832

約数和(自身を除く): 394151492

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 977, 1954, 2053, 3908, 4106, 4885, 6839, 8212, 9770, 10265, 13678, 14371, 19540, 20530, 27356, 28742, 34195, 41060, 57484, 68390, 71855, 136780, 143710, 287420, 2005781, 4011562, 8023124, 10028905, 14040467, 20057810, 28080934, 40115620, 56161868, 70202335, 140404670, 280809340]

約数ペア:

[(1, 280809340), (2, 140404670), (4, 70202335), (5, 56161868), (7, 40115620), (10, 28080934), (14, 20057810), (20, 14040467), (28, 10028905), (35, 8023124), (70, 4011562), (140, 2005781), (977, 287420), (1954, 143710), (2053, 136780), (3908, 71855), (4106, 68390), (4885, 57484), (6839, 41060), (8212, 34195), (9770, 28742), (10265, 27356), (13678, 20530), (14371, 19540)]