290910080

素因数分解:

$2^7\times 5^1\times {\mathrm{454547}}^1$

素因数の和:454566

約数の個数: 32

約数和(自身を含む): 695458440

約数和(自身を除く): 404548360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 454547, 909094, 1818188, 2272735, 3636376, 4545470, 7272752, 9090940, 14545504, 18181880, 29091008, 36363760, 58182016, 72727520, 145455040, 290910080]

約数ペア:

[(1, 290910080), (2, 145455040), (4, 72727520), (5, 58182016), (8, 36363760), (10, 29091008), (16, 18181880), (20, 14545504), (32, 9090940), (40, 7272752), (64, 4545470), (80, 3636376), (128, 2272735), (160, 1818188), (320, 909094), (640, 454547)]