291223120

素因数分解:

$2^4\times 5^1\times {\mathrm{3640289}}^1$

素因数の和:3640302

約数の個数: 20

約数和(自身を含む): 677093940

約数和(自身を除く): 385870820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640289, 7280578, 14561156, 18201445, 29122312, 36402890, 58244624, 72805780, 145611560, 291223120]

約数ペア:

[(1, 291223120), (2, 145611560), (4, 72805780), (5, 58244624), (8, 36402890), (10, 29122312), (16, 18201445), (20, 14561156), (40, 7280578), (80, 3640289)]