12999400

素因数分解:

$2^3\times 5^2\times {\mathrm{64997}}^1$

素因数の和:65013

約数の個数: 24

約数和(自身を含む): 30224070

約数和(自身を除く): 17224670

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 64997, 129994, 259988, 324985, 519976, 649970, 1299940, 1624925, 2599880, 3249850, 6499700, 12999400]

約数ペア:

[(1, 12999400), (2, 6499700), (4, 3249850), (5, 2599880), (8, 1624925), (10, 1299940), (20, 649970), (25, 519976), (40, 324985), (50, 259988), (100, 129994), (200, 64997)]