20121263620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1\times {\mathrm{141719}}^1$

素因数の和:141988

約数の個数: 48

約数和(自身を含む): 43808486400

約数和(自身を除く): 23687222780

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 229, 310, 458, 620, 916, 1145, 2290, 4580, 7099, 14198, 28396, 35495, 70990, 141719, 141980, 283438, 566876, 708595, 1417190, 2834380, 4393289, 8786578, 17573156, 21966445, 32453651, 43932890, 64907302, 87865780, 129814604, 162268255, 324536510, 649073020, 1006063181, 2012126362, 4024252724, 5030315905, 10060631810, 20121263620]

約数ペア:

[(1, 20121263620), (2, 10060631810), (4, 5030315905), (5, 4024252724), (10, 2012126362), (20, 1006063181), (31, 649073020), (62, 324536510), (124, 162268255), (155, 129814604), (229, 87865780), (310, 64907302), (458, 43932890), (620, 32453651), (916, 21966445), (1145, 17573156), (2290, 8786578), (4580, 4393289), (7099, 2834380), (14198, 1417190), (28396, 708595), (35495, 566876), (70990, 283438), (141719, 141980)]