20129221450

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1821649}}^1$

素因数の和:1821691

約数の個数: 48

約数和(自身を含む): 42692189400

約数和(自身を除く): 22562967950

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 130, 170, 221, 325, 425, 442, 650, 850, 1105, 2210, 5525, 11050, 1821649, 3643298, 9108245, 18216490, 23681437, 30968033, 45541225, 47362874, 61936066, 91082450, 118407185, 154840165, 236814370, 309680330, 402584429, 592035925, 774200825, 805168858, 1184071850, 1548401650, 2012922145, 4025844290, 10064610725, 20129221450]

約数ペア:

[(1, 20129221450), (2, 10064610725), (5, 4025844290), (10, 2012922145), (13, 1548401650), (17, 1184071850), (25, 805168858), (26, 774200825), (34, 592035925), (50, 402584429), (65, 309680330), (85, 236814370), (130, 154840165), (170, 118407185), (221, 91082450), (325, 61936066), (425, 47362874), (442, 45541225), (650, 30968033), (850, 23681437), (1105, 18216490), (2210, 9108245), (5525, 3643298), (11050, 1821649)]