85182860

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{20981}}^1$

素因数の和:21026

約数の個数: 48

約数和(自身を含む): 211498560

約数和(自身を除く): 126315700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 29, 35, 58, 70, 116, 140, 145, 203, 290, 406, 580, 812, 1015, 2030, 4060, 20981, 41962, 83924, 104905, 146867, 209810, 293734, 419620, 587468, 608449, 734335, 1216898, 1468670, 2433796, 2937340, 3042245, 4259143, 6084490, 8518286, 12168980, 17036572, 21295715, 42591430, 85182860]

約数ペア:

[(1, 85182860), (2, 42591430), (4, 21295715), (5, 17036572), (7, 12168980), (10, 8518286), (14, 6084490), (20, 4259143), (28, 3042245), (29, 2937340), (35, 2433796), (58, 1468670), (70, 1216898), (116, 734335), (140, 608449), (145, 587468), (203, 419620), (290, 293734), (406, 209810), (580, 146867), (812, 104905), (1015, 83924), (2030, 41962), (4060, 20981)]