20102128120

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{56359}}^1$

素因数の和:56648

約数の個数: 64

約数和(自身を含む): 46645790400

約数和(自身を除く): 26543662280

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 241, 296, 370, 482, 740, 964, 1205, 1480, 1928, 2410, 4820, 8917, 9640, 17834, 35668, 44585, 56359, 71336, 89170, 112718, 178340, 225436, 281795, 356680, 450872, 563590, 1127180, 2085283, 2254360, 4170566, 8341132, 10426415, 13582519, 16682264, 20852830, 27165038, 41705660, 54330076, 67912595, 83411320, 108660152, 135825190, 271650380, 502553203, 543300760, 1005106406, 2010212812, 2512766015, 4020425624, 5025532030, 10051064060, 20102128120]

約数ペア:

[(1, 20102128120), (2, 10051064060), (4, 5025532030), (5, 4020425624), (8, 2512766015), (10, 2010212812), (20, 1005106406), (37, 543300760), (40, 502553203), (74, 271650380), (148, 135825190), (185, 108660152), (241, 83411320), (296, 67912595), (370, 54330076), (482, 41705660), (740, 27165038), (964, 20852830), (1205, 16682264), (1480, 13582519), (1928, 10426415), (2410, 8341132), (4820, 4170566), (8917, 2254360), (9640, 2085283), (17834, 1127180), (35668, 563590), (44585, 450872), (56359, 356680), (71336, 281795), (89170, 225436), (112718, 178340)]