28445420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83663}}^1$

素因数の和:83689

約数の個数: 24

約数和(自身を含む): 63249984

約数和(自身を除く): 34804564

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 83663, 167326, 334652, 418315, 836630, 1422271, 1673260, 2844542, 5689084, 7111355, 14222710, 28445420]

約数ペア:

[(1, 28445420), (2, 14222710), (4, 7111355), (5, 5689084), (10, 2844542), (17, 1673260), (20, 1422271), (34, 836630), (68, 418315), (85, 334652), (170, 167326), (340, 83663)]