2021815100

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^2\times {\mathrm{69959}}^1$

素因数の和:70007

約数の個数: 54

約数和(自身を含む): 4660665240

約数和(自身を除く): 2638850140

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 289, 340, 425, 578, 850, 1156, 1445, 1700, 2890, 5780, 7225, 14450, 28900, 69959, 139918, 279836, 349795, 699590, 1189303, 1399180, 1748975, 2378606, 3497950, 4757212, 5946515, 6995900, 11893030, 20218151, 23786060, 29732575, 40436302, 59465150, 80872604, 101090755, 118930300, 202181510, 404363020, 505453775, 1010907550, 2021815100]

約数ペア:

[(1, 2021815100), (2, 1010907550), (4, 505453775), (5, 404363020), (10, 202181510), (17, 118930300), (20, 101090755), (25, 80872604), (34, 59465150), (50, 40436302), (68, 29732575), (85, 23786060), (100, 20218151), (170, 11893030), (289, 6995900), (340, 5946515), (425, 4757212), (578, 3497950), (850, 2378606), (1156, 1748975), (1445, 1399180), (1700, 1189303), (2890, 699590), (5780, 349795), (7225, 279836), (14450, 139918), (28900, 69959)]