28138266

素因数分解:

$2^1\times 3^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{431}}^1$

素因数の和:489

約数の個数: 80

約数和(自身を含む): 70253568

約数和(自身を除く): 42115302

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 31, 39, 54, 62, 78, 81, 93, 117, 162, 186, 234, 279, 351, 403, 431, 558, 702, 806, 837, 862, 1053, 1209, 1293, 1674, 2106, 2418, 2511, 2586, 3627, 3879, 5022, 5603, 7254, 7758, 10881, 11206, 11637, 13361, 16809, 21762, 23274, 26722, 32643, 33618, 34911, 40083, 50427, 65286, 69822, 80166, 100854, 120249, 151281, 173693, 240498, 302562, 347386, 360747, 453843, 521079, 721494, 907686, 1042158, 1082241, 1563237, 2164482, 3126474, 4689711, 9379422, 14069133, 28138266]

約数ペア:

[(1, 28138266), (2, 14069133), (3, 9379422), (6, 4689711), (9, 3126474), (13, 2164482), (18, 1563237), (26, 1082241), (27, 1042158), (31, 907686), (39, 721494), (54, 521079), (62, 453843), (78, 360747), (81, 347386), (93, 302562), (117, 240498), (162, 173693), (186, 151281), (234, 120249), (279, 100854), (351, 80166), (403, 69822), (431, 65286), (558, 50427), (702, 40083), (806, 34911), (837, 33618), (862, 32643), (1053, 26722), (1209, 23274), (1293, 21762), (1674, 16809), (2106, 13361), (2418, 11637), (2511, 11206), (2586, 10881), (3627, 7758), (3879, 7254), (5022, 5603)]