11557840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{20639}}^1$

素因数の和:20659

約数の個数: 40

約数和(自身を含む): 30712320

約数和(自身を除く): 19154480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 20639, 41278, 82556, 103195, 144473, 165112, 206390, 288946, 330224, 412780, 577892, 722365, 825560, 1155784, 1444730, 1651120, 2311568, 2889460, 5778920, 11557840]

約数ペア:

[(1, 11557840), (2, 5778920), (4, 2889460), (5, 2311568), (7, 1651120), (8, 1444730), (10, 1155784), (14, 825560), (16, 722365), (20, 577892), (28, 412780), (35, 330224), (40, 288946), (56, 206390), (70, 165112), (80, 144473), (112, 103195), (140, 82556), (280, 41278), (560, 20639)]