27781930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{139}}^1$

素因数の和:259

約数の個数: 64

約数和(自身を含む): 58060800

約数和(自身を除く): 30278870

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 79, 110, 115, 139, 158, 230, 253, 278, 395, 506, 695, 790, 869, 1265, 1390, 1529, 1738, 1817, 2530, 3058, 3197, 3634, 4345, 6394, 7645, 8690, 9085, 10981, 15290, 15985, 18170, 19987, 21962, 31970, 35167, 39974, 54905, 70334, 99935, 109810, 120791, 175835, 199870, 241582, 252563, 351670, 505126, 603955, 1207910, 1262815, 2525630, 2778193, 5556386, 13890965, 27781930]

約数ペア:

[(1, 27781930), (2, 13890965), (5, 5556386), (10, 2778193), (11, 2525630), (22, 1262815), (23, 1207910), (46, 603955), (55, 505126), (79, 351670), (110, 252563), (115, 241582), (139, 199870), (158, 175835), (230, 120791), (253, 109810), (278, 99935), (395, 70334), (506, 54905), (695, 39974), (790, 35167), (869, 31970), (1265, 21962), (1390, 19987), (1529, 18170), (1738, 15985), (1817, 15290), (2530, 10981), (3058, 9085), (3197, 8690), (3634, 7645), (4345, 6394)]