81520328

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{191}}^1\times {\mathrm{1721}}^1$

素因数の和:1949

約数の個数: 32

約数和(自身を含む): 158699520

約数和(自身を除く): 77179192

約数列:

[1, 2, 4, 8, 31, 62, 124, 191, 248, 382, 764, 1528, 1721, 3442, 5921, 6884, 11842, 13768, 23684, 47368, 53351, 106702, 213404, 328711, 426808, 657422, 1314844, 2629688, 10190041, 20380082, 40760164, 81520328]

約数ペア:

[(1, 81520328), (2, 40760164), (4, 20380082), (8, 10190041), (31, 2629688), (62, 1314844), (124, 657422), (191, 426808), (248, 328711), (382, 213404), (764, 106702), (1528, 53351), (1721, 47368), (3442, 23684), (5921, 13768), (6884, 11842)]