20085454960

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2039}}^1\times {\mathrm{2087}}^1$

素因数の和:4198

約数の個数: 80

約数和(自身を含む): 47536243200

約数和(自身を除く): 27450788240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 236, 295, 472, 590, 944, 1180, 2039, 2087, 2360, 4078, 4174, 4720, 8156, 8348, 10195, 10435, 16312, 16696, 20390, 20870, 32624, 33392, 40780, 41740, 81560, 83480, 120301, 123133, 163120, 166960, 240602, 246266, 481204, 492532, 601505, 615665, 962408, 985064, 1203010, 1231330, 1924816, 1970128, 2406020, 2462660, 4255393, 4812040, 4925320, 8510786, 9624080, 9850640, 17021572, 21276965, 34043144, 42553930, 68086288, 85107860, 170215720, 251068187, 340431440, 502136374, 1004272748, 1255340935, 2008545496, 2510681870, 4017090992, 5021363740, 10042727480, 20085454960]

約数ペア:

[(1, 20085454960), (2, 10042727480), (4, 5021363740), (5, 4017090992), (8, 2510681870), (10, 2008545496), (16, 1255340935), (20, 1004272748), (40, 502136374), (59, 340431440), (80, 251068187), (118, 170215720), (236, 85107860), (295, 68086288), (472, 42553930), (590, 34043144), (944, 21276965), (1180, 17021572), (2039, 9850640), (2087, 9624080), (2360, 8510786), (4078, 4925320), (4174, 4812040), (4720, 4255393), (8156, 2462660), (8348, 2406020), (10195, 1970128), (10435, 1924816), (16312, 1231330), (16696, 1203010), (20390, 985064), (20870, 962408), (32624, 615665), (33392, 601505), (40780, 492532), (41740, 481204), (81560, 246266), (83480, 240602), (120301, 166960), (123133, 163120)]