99861980

素因数分解:

$2^2\times 5^1\times {\mathrm{1789}}^1\times {\mathrm{2791}}^1$

素因数の和:4589

約数の個数: 24

約数和(自身を含む): 209902560

約数和(自身を除く): 110040580

約数列:

[1, 2, 4, 5, 10, 20, 1789, 2791, 3578, 5582, 7156, 8945, 11164, 13955, 17890, 27910, 35780, 55820, 4993099, 9986198, 19972396, 24965495, 49930990, 99861980]

約数ペア:

[(1, 99861980), (2, 49930990), (4, 24965495), (5, 19972396), (10, 9986198), (20, 4993099), (1789, 55820), (2791, 35780), (3578, 27910), (5582, 17890), (7156, 13955), (8945, 11164)]