9102920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{2557}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 20719800

約数和(自身を除く): 11616880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 356, 445, 712, 890, 1780, 2557, 3560, 5114, 10228, 12785, 20456, 25570, 51140, 102280, 227573, 455146, 910292, 1137865, 1820584, 2275730, 4551460, 9102920]

約数ペア:

[(1, 9102920), (2, 4551460), (4, 2275730), (5, 1820584), (8, 1137865), (10, 910292), (20, 455146), (40, 227573), (89, 102280), (178, 51140), (356, 25570), (445, 20456), (712, 12785), (890, 10228), (1780, 5114), (2557, 3560)]