128980140

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{27211}}^1$

素因数の和:27302

約数の個数: 48

約数和(自身を含む): 365729280

約数和(自身を除く): 236749140

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 79, 158, 237, 316, 395, 474, 790, 948, 1185, 1580, 2370, 4740, 27211, 54422, 81633, 108844, 136055, 163266, 272110, 326532, 408165, 544220, 816330, 1632660, 2149669, 4299338, 6449007, 8598676, 10748345, 12898014, 21496690, 25796028, 32245035, 42993380, 64490070, 128980140]

約数ペア:

[(1, 128980140), (2, 64490070), (3, 42993380), (4, 32245035), (5, 25796028), (6, 21496690), (10, 12898014), (12, 10748345), (15, 8598676), (20, 6449007), (30, 4299338), (60, 2149669), (79, 1632660), (158, 816330), (237, 544220), (316, 408165), (395, 326532), (474, 272110), (790, 163266), (948, 136055), (1185, 108844), (1580, 81633), (2370, 54422), (4740, 27211)]