81330482020

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{4129}}^1\times {\mathrm{33961}}^1$

素因数の和:38128

約数の個数: 48

約数和(自身を含む): 176731455600

約数和(自身を除く): 95400973580

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 4129, 8258, 16516, 20645, 33961, 41290, 67922, 82580, 119741, 135844, 169805, 239482, 339610, 478964, 598705, 679220, 984869, 1197410, 1969738, 2394820, 3939476, 4924345, 9848690, 19697380, 140224969, 280449938, 560899876, 701124845, 1402249690, 2804499380, 4066524101, 8133048202, 16266096404, 20332620505, 40665241010, 81330482020]

約数ペア:

[(1, 81330482020), (2, 40665241010), (4, 20332620505), (5, 16266096404), (10, 8133048202), (20, 4066524101), (29, 2804499380), (58, 1402249690), (116, 701124845), (145, 560899876), (290, 280449938), (580, 140224969), (4129, 19697380), (8258, 9848690), (16516, 4924345), (20645, 3939476), (33961, 2394820), (41290, 1969738), (67922, 1197410), (82580, 984869), (119741, 679220), (135844, 598705), (169805, 478964), (239482, 339610)]