20218780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59467}}^1$

素因数の和:59493

約数の個数: 24

約数和(自身を含む): 44957808

約数和(自身を除く): 24739028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 59467, 118934, 237868, 297335, 594670, 1010939, 1189340, 2021878, 4043756, 5054695, 10109390, 20218780]

約数ペア:

[(1, 20218780), (2, 10109390), (4, 5054695), (5, 4043756), (10, 2021878), (17, 1189340), (20, 1010939), (34, 594670), (68, 297335), (85, 237868), (170, 118934), (340, 59467)]