169432840

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{10889}}^1$

素因数の和:11289

約数の個数: 32

約数和(自身を含む): 382239000

約数和(自身を除く): 212806160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 7780, 10889, 15560, 21778, 43556, 54445, 87112, 108890, 217780, 435560, 4235821, 8471642, 16943284, 21179105, 33886568, 42358210, 84716420, 169432840]

約数ペア:

[(1, 169432840), (2, 84716420), (4, 42358210), (5, 33886568), (8, 21179105), (10, 16943284), (20, 8471642), (40, 4235821), (389, 435560), (778, 217780), (1556, 108890), (1945, 87112), (3112, 54445), (3890, 43556), (7780, 21778), (10889, 15560)]