20201789530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{701}}^1\times {\mathrm{7151}}^1$

素因数の和:7903

約数の個数: 64

約数和(自身を含む): 40486957056

約数和(自身を除く): 20285167526

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 701, 806, 1402, 2015, 3505, 4030, 7010, 7151, 9113, 14302, 18226, 21731, 35755, 43462, 45565, 71510, 91130, 92963, 108655, 185926, 217310, 221681, 282503, 443362, 464815, 565006, 929630, 1108405, 1412515, 2216810, 2825030, 2881853, 5012851, 5763706, 10025702, 14409265, 25064255, 28818530, 50128510, 65167063, 130334126, 155398381, 310796762, 325835315, 651670630, 776991905, 1553983810, 2020178953, 4040357906, 10100894765, 20201789530]

約数ペア:

[(1, 20201789530), (2, 10100894765), (5, 4040357906), (10, 2020178953), (13, 1553983810), (26, 776991905), (31, 651670630), (62, 325835315), (65, 310796762), (130, 155398381), (155, 130334126), (310, 65167063), (403, 50128510), (701, 28818530), (806, 25064255), (1402, 14409265), (2015, 10025702), (3505, 5763706), (4030, 5012851), (7010, 2881853), (7151, 2825030), (9113, 2216810), (14302, 1412515), (18226, 1108405), (21731, 929630), (35755, 565006), (43462, 464815), (45565, 443362), (71510, 282503), (91130, 221681), (92963, 217310), (108655, 185926)]