16991240

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{8669}}^1$

素因数の和:8694

約数の個数: 48

約数和(自身を含む): 44477100

約数和(自身を除く): 27485860

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1960, 8669, 17338, 34676, 43345, 60683, 69352, 86690, 121366, 173380, 242732, 303415, 346760, 424781, 485464, 606830, 849562, 1213660, 1699124, 2123905, 2427320, 3398248, 4247810, 8495620, 16991240]

約数ペア:

[(1, 16991240), (2, 8495620), (4, 4247810), (5, 3398248), (7, 2427320), (8, 2123905), (10, 1699124), (14, 1213660), (20, 849562), (28, 606830), (35, 485464), (40, 424781), (49, 346760), (56, 303415), (70, 242732), (98, 173380), (140, 121366), (196, 86690), (245, 69352), (280, 60683), (392, 43345), (490, 34676), (980, 17338), (1960, 8669)]