157420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{463}}^1$

素因数の和:489

約数の個数: 24

約数和(自身を含む): 350784

約数和(自身を除く): 193364

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 463, 926, 1852, 2315, 4630, 7871, 9260, 15742, 31484, 39355, 78710, 157420]

約数ペア:

[(1, 157420), (2, 78710), (4, 39355), (5, 31484), (10, 15742), (17, 9260), (20, 7871), (34, 4630), (68, 2315), (85, 1852), (170, 926), (340, 463)]