18484280

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8719}}^1$

素因数の和:8783

約数の個数: 32

約数和(自身を含む): 42379200

約数和(自身を除く): 23894920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8719, 17438, 34876, 43595, 69752, 87190, 174380, 348760, 462107, 924214, 1848428, 2310535, 3696856, 4621070, 9242140, 18484280]

約数ペア:

[(1, 18484280), (2, 9242140), (4, 4621070), (5, 3696856), (8, 2310535), (10, 1848428), (20, 924214), (40, 462107), (53, 348760), (106, 174380), (212, 87190), (265, 69752), (424, 43595), (530, 34876), (1060, 17438), (2120, 8719)]