12389500

素因数分解:

$2^2\times 5^3\times {\mathrm{71}}^1\times {\mathrm{349}}^1$

素因数の和:439

約数の個数: 48

約数和(自身を含む): 27518400

約数和(自身を除く): 15128900

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 71, 100, 125, 142, 250, 284, 349, 355, 500, 698, 710, 1396, 1420, 1745, 1775, 3490, 3550, 6980, 7100, 8725, 8875, 17450, 17750, 24779, 34900, 35500, 43625, 49558, 87250, 99116, 123895, 174500, 247790, 495580, 619475, 1238950, 2477900, 3097375, 6194750, 12389500]

約数ペア:

[(1, 12389500), (2, 6194750), (4, 3097375), (5, 2477900), (10, 1238950), (20, 619475), (25, 495580), (50, 247790), (71, 174500), (100, 123895), (125, 99116), (142, 87250), (250, 49558), (284, 43625), (349, 35500), (355, 34900), (500, 24779), (698, 17750), (710, 17450), (1396, 8875), (1420, 8725), (1745, 7100), (1775, 6980), (3490, 3550)]