290499280

素因数分解:

$2^4\times 5^1\times {\mathrm{263}}^1\times {\mathrm{13807}}^1$

素因数の和:14083

約数の個数: 40

約数和(自身を含む): 678028032

約数和(自身を除く): 387528752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 263, 526, 1052, 1315, 2104, 2630, 4208, 5260, 10520, 13807, 21040, 27614, 55228, 69035, 110456, 138070, 220912, 276140, 552280, 1104560, 3631241, 7262482, 14524964, 18156205, 29049928, 36312410, 58099856, 72624820, 145249640, 290499280]

約数ペア:

[(1, 290499280), (2, 145249640), (4, 72624820), (5, 58099856), (8, 36312410), (10, 29049928), (16, 18156205), (20, 14524964), (40, 7262482), (80, 3631241), (263, 1104560), (526, 552280), (1052, 276140), (1315, 220912), (2104, 138070), (2630, 110456), (4208, 69035), (5260, 55228), (10520, 27614), (13807, 21040)]