28718780

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84467}}^1$

素因数の和:84493

約数の個数: 24

約数和(自身を含む): 63857808

約数和(自身を除く): 35139028

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 84467, 168934, 337868, 422335, 844670, 1435939, 1689340, 2871878, 5743756, 7179695, 14359390, 28718780]

約数ペア:

[(1, 28718780), (2, 14359390), (4, 7179695), (5, 5743756), (10, 2871878), (17, 1689340), (20, 1435939), (34, 844670), (68, 422335), (85, 337868), (170, 168934), (340, 84467)]