64810180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{68947}}^1$

素因数の和:69003

約数の個数: 24

約数和(自身を含む): 138999168

約数和(自身を除く): 74188988

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 68947, 137894, 275788, 344735, 689470, 1378940, 3240509, 6481018, 12962036, 16202545, 32405090, 64810180]

約数ペア:

[(1, 64810180), (2, 32405090), (4, 16202545), (5, 12962036), (10, 6481018), (20, 3240509), (47, 1378940), (94, 689470), (188, 344735), (235, 275788), (470, 137894), (940, 68947)]