20121406060

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{563}}^1\times {\mathrm{36469}}^1$

素因数の和:37055

約数の個数: 72

約数和(自身を含む): 49242377520

約数和(自身を除く): 29120971460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 563, 980, 1126, 2252, 2815, 3941, 5630, 7882, 11260, 15764, 19705, 27587, 36469, 39410, 55174, 72938, 78820, 110348, 137935, 145876, 182345, 255283, 275870, 364690, 510566, 551740, 729380, 1021132, 1276415, 1786981, 2552830, 3573962, 5105660, 7147924, 8934905, 17869810, 20532047, 35739620, 41064094, 82128188, 102660235, 143724329, 205320470, 287448658, 410640940, 574897316, 718621645, 1006070303, 1437243290, 2012140606, 2874486580, 4024281212, 5030351515, 10060703030, 20121406060]

約数ペア:

[(1, 20121406060), (2, 10060703030), (4, 5030351515), (5, 4024281212), (7, 2874486580), (10, 2012140606), (14, 1437243290), (20, 1006070303), (28, 718621645), (35, 574897316), (49, 410640940), (70, 287448658), (98, 205320470), (140, 143724329), (196, 102660235), (245, 82128188), (490, 41064094), (563, 35739620), (980, 20532047), (1126, 17869810), (2252, 8934905), (2815, 7147924), (3941, 5105660), (5630, 3573962), (7882, 2552830), (11260, 1786981), (15764, 1276415), (19705, 1021132), (27587, 729380), (36469, 551740), (39410, 510566), (55174, 364690), (72938, 275870), (78820, 255283), (110348, 182345), (137935, 145876)]