19336850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{419}}^1$

素因数の和:515

約数の個数: 48

約数和(自身を含む): 39372480

約数和(自身を除く): 20035630

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 71, 130, 142, 325, 355, 419, 650, 710, 838, 923, 1775, 1846, 2095, 3550, 4190, 4615, 5447, 9230, 10475, 10894, 20950, 23075, 27235, 29749, 46150, 54470, 59498, 136175, 148745, 272350, 297490, 386737, 743725, 773474, 1487450, 1933685, 3867370, 9668425, 19336850]

約数ペア:

[(1, 19336850), (2, 9668425), (5, 3867370), (10, 1933685), (13, 1487450), (25, 773474), (26, 743725), (50, 386737), (65, 297490), (71, 272350), (130, 148745), (142, 136175), (325, 59498), (355, 54470), (419, 46150), (650, 29749), (710, 27235), (838, 23075), (923, 20950), (1775, 10894), (1846, 10475), (2095, 9230), (3550, 5447), (4190, 4615)]