142460

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1$

素因数の和:445

約数の個数: 24

約数和(自身を含む): 317520

約数和(自身を除く): 175060

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 419, 838, 1676, 2095, 4190, 7123, 8380, 14246, 28492, 35615, 71230, 142460]

約数ペア:

[(1, 142460), (2, 71230), (4, 35615), (5, 28492), (10, 14246), (17, 8380), (20, 7123), (34, 4190), (68, 2095), (85, 1676), (170, 838), (340, 419)]