28007620

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{1123}}^1$

素因数の和:1204

約数の個数: 48

約数和(自身を含む): 62314560

約数和(自身を除く): 34306940

約数列:

[1, 2, 4, 5, 10, 20, 29, 43, 58, 86, 116, 145, 172, 215, 290, 430, 580, 860, 1123, 1247, 2246, 2494, 4492, 4988, 5615, 6235, 11230, 12470, 22460, 24940, 32567, 48289, 65134, 96578, 130268, 162835, 193156, 241445, 325670, 482890, 651340, 965780, 1400381, 2800762, 5601524, 7001905, 14003810, 28007620]

約数ペア:

[(1, 28007620), (2, 14003810), (4, 7001905), (5, 5601524), (10, 2800762), (20, 1400381), (29, 965780), (43, 651340), (58, 482890), (86, 325670), (116, 241445), (145, 193156), (172, 162835), (215, 130268), (290, 96578), (430, 65134), (580, 48289), (860, 32567), (1123, 24940), (1247, 22460), (2246, 12470), (2494, 11230), (4492, 6235), (4988, 5615)]