257063380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{307}}^1\times {\mathrm{5981}}^1$

素因数の和:6304

約数の個数: 48

約数和(自身を含む): 619065216

約数和(自身を除く): 362001836

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 307, 614, 1228, 1535, 2149, 3070, 4298, 5981, 6140, 8596, 10745, 11962, 21490, 23924, 29905, 41867, 42980, 59810, 83734, 119620, 167468, 209335, 418670, 837340, 1836167, 3672334, 7344668, 9180835, 12853169, 18361670, 25706338, 36723340, 51412676, 64265845, 128531690, 257063380]

約数ペア:

[(1, 257063380), (2, 128531690), (4, 64265845), (5, 51412676), (7, 36723340), (10, 25706338), (14, 18361670), (20, 12853169), (28, 9180835), (35, 7344668), (70, 3672334), (140, 1836167), (307, 837340), (614, 418670), (1228, 209335), (1535, 167468), (2149, 119620), (3070, 83734), (4298, 59810), (5981, 42980), (6140, 41867), (8596, 29905), (10745, 23924), (11962, 21490)]