68941720

素因数分解:

$2^3\times 5^1\times {\mathrm{79}}^1\times {\mathrm{21817}}^1$

素因数の和:21907

約数の個数: 32

約数和(自身を含む): 157089600

約数和(自身を除く): 88147880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 79, 158, 316, 395, 632, 790, 1580, 3160, 21817, 43634, 87268, 109085, 174536, 218170, 436340, 872680, 1723543, 3447086, 6894172, 8617715, 13788344, 17235430, 34470860, 68941720]

約数ペア:

[(1, 68941720), (2, 34470860), (4, 17235430), (5, 13788344), (8, 8617715), (10, 6894172), (20, 3447086), (40, 1723543), (79, 872680), (158, 436340), (316, 218170), (395, 174536), (632, 109085), (790, 87268), (1580, 43634), (3160, 21817)]