2487380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:288

約数の個数: 48

約数和(自身を含む): 6061440

約数和(自身を除く): 3574060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 163, 218, 326, 436, 545, 652, 763, 815, 1090, 1141, 1526, 1630, 2180, 2282, 3052, 3260, 3815, 4564, 5705, 7630, 11410, 15260, 17767, 22820, 35534, 71068, 88835, 124369, 177670, 248738, 355340, 497476, 621845, 1243690, 2487380]

約数ペア:

[(1, 2487380), (2, 1243690), (4, 621845), (5, 497476), (7, 355340), (10, 248738), (14, 177670), (20, 124369), (28, 88835), (35, 71068), (70, 35534), (109, 22820), (140, 17767), (163, 15260), (218, 11410), (326, 7630), (436, 5705), (545, 4564), (652, 3815), (763, 3260), (815, 3052), (1090, 2282), (1141, 2180), (1526, 1630)]