290385711

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{1931}}^1$

素因数の和:1993

約数の個数: 72

約数和(自身を含む): 549739008

約数和(自身を除く): 259353297

約数列:

[1, 3, 7, 9, 11, 21, 31, 33, 49, 63, 77, 93, 99, 147, 217, 231, 279, 341, 441, 539, 651, 693, 1023, 1519, 1617, 1931, 1953, 2387, 3069, 4557, 4851, 5793, 7161, 13517, 13671, 16709, 17379, 21241, 21483, 40551, 50127, 59861, 63723, 94619, 121653, 148687, 150381, 179583, 191169, 283857, 419027, 446061, 538749, 658471, 851571, 1040809, 1257081, 1338183, 1975413, 2933189, 3122427, 3771243, 4609297, 5926239, 8799567, 9367281, 13827891, 26398701, 32265079, 41483673, 96795237, 290385711]

約数ペア:

[(1, 290385711), (3, 96795237), (7, 41483673), (9, 32265079), (11, 26398701), (21, 13827891), (31, 9367281), (33, 8799567), (49, 5926239), (63, 4609297), (77, 3771243), (93, 3122427), (99, 2933189), (147, 1975413), (217, 1338183), (231, 1257081), (279, 1040809), (341, 851571), (441, 658471), (539, 538749), (651, 446061), (693, 419027), (1023, 283857), (1519, 191169), (1617, 179583), (1931, 150381), (1953, 148687), (2387, 121653), (3069, 94619), (4557, 63723), (4851, 59861), (5793, 50127), (7161, 40551), (13517, 21483), (13671, 21241), (16709, 17379)]