80354020

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{1171}}^1$

素因数の和:1300

約数の個数: 48

約数和(自身を含む): 174843648

約数和(自身を除く): 94489628

約数列:

[1, 2, 4, 5, 10, 20, 47, 73, 94, 146, 188, 235, 292, 365, 470, 730, 940, 1171, 1460, 2342, 3431, 4684, 5855, 6862, 11710, 13724, 17155, 23420, 34310, 55037, 68620, 85483, 110074, 170966, 220148, 275185, 341932, 427415, 550370, 854830, 1100740, 1709660, 4017701, 8035402, 16070804, 20088505, 40177010, 80354020]

約数ペア:

[(1, 80354020), (2, 40177010), (4, 20088505), (5, 16070804), (10, 8035402), (20, 4017701), (47, 1709660), (73, 1100740), (94, 854830), (146, 550370), (188, 427415), (235, 341932), (292, 275185), (365, 220148), (470, 170966), (730, 110074), (940, 85483), (1171, 68620), (1460, 55037), (2342, 34310), (3431, 23420), (4684, 17155), (5855, 13724), (6862, 11710)]