878906799

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{1103}}^1$

素因数の和:1252

約数の個数: 48

約数和(自身を含む): 1364014080

約数和(自身を除く): 485107281

約数列:

[1, 3, 9, 29, 43, 71, 87, 129, 213, 261, 387, 639, 1103, 1247, 2059, 3053, 3309, 3741, 6177, 9159, 9927, 11223, 18531, 27477, 31987, 47429, 78313, 88537, 95961, 142287, 234939, 265611, 287883, 426861, 704817, 796833, 1375441, 2271077, 3367459, 4126323, 6813231, 10102377, 12378969, 20439693, 30307131, 97656311, 292968933, 878906799]

約数ペア:

[(1, 878906799), (3, 292968933), (9, 97656311), (29, 30307131), (43, 20439693), (71, 12378969), (87, 10102377), (129, 6813231), (213, 4126323), (261, 3367459), (387, 2271077), (639, 1375441), (1103, 796833), (1247, 704817), (2059, 426861), (3053, 287883), (3309, 265611), (3741, 234939), (6177, 142287), (9159, 95961), (9927, 88537), (11223, 78313), (18531, 47429), (27477, 31987)]