18164560

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{4831}}^1$

素因数の和:4891

約数の個数: 40

約数和(自身を含む): 43140096

約数和(自身を除く): 24975536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 4831, 9662, 19324, 24155, 38648, 48310, 77296, 96620, 193240, 227057, 386480, 454114, 908228, 1135285, 1816456, 2270570, 3632912, 4541140, 9082280, 18164560]

約数ペア:

[(1, 18164560), (2, 9082280), (4, 4541140), (5, 3632912), (8, 2270570), (10, 1816456), (16, 1135285), (20, 908228), (40, 454114), (47, 386480), (80, 227057), (94, 193240), (188, 96620), (235, 77296), (376, 48310), (470, 38648), (752, 24155), (940, 19324), (1880, 9662), (3760, 4831)]