28288806

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{263}}^1$

素因数の和:485

約数の個数: 64

約数和(自身を含む): 70253568

約数和(自身を除く): 41964762

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 78, 91, 182, 197, 263, 273, 394, 526, 546, 591, 789, 1182, 1379, 1578, 1841, 2561, 2758, 3419, 3682, 4137, 5122, 5523, 6838, 7683, 8274, 10257, 11046, 15366, 17927, 20514, 23933, 35854, 47866, 51811, 53781, 71799, 103622, 107562, 143598, 155433, 310866, 362677, 673543, 725354, 1088031, 1347086, 2020629, 2176062, 4041258, 4714801, 9429602, 14144403, 28288806]

約数ペア:

[(1, 28288806), (2, 14144403), (3, 9429602), (6, 4714801), (7, 4041258), (13, 2176062), (14, 2020629), (21, 1347086), (26, 1088031), (39, 725354), (42, 673543), (78, 362677), (91, 310866), (182, 155433), (197, 143598), (263, 107562), (273, 103622), (394, 71799), (526, 53781), (546, 51811), (591, 47866), (789, 35854), (1182, 23933), (1379, 20514), (1578, 17927), (1841, 15366), (2561, 11046), (2758, 10257), (3419, 8274), (3682, 7683), (4137, 6838), (5122, 5523)]