19531850

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 39580800

約数和(自身を除く): 20048950

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 151, 199, 302, 325, 398, 650, 755, 995, 1510, 1963, 1990, 2587, 3775, 3926, 4975, 5174, 7550, 9815, 9950, 12935, 19630, 25870, 30049, 49075, 60098, 64675, 98150, 129350, 150245, 300490, 390637, 751225, 781274, 1502450, 1953185, 3906370, 9765925, 19531850]

約数ペア:

[(1, 19531850), (2, 9765925), (5, 3906370), (10, 1953185), (13, 1502450), (25, 781274), (26, 751225), (50, 390637), (65, 300490), (130, 150245), (151, 129350), (199, 98150), (302, 64675), (325, 60098), (398, 49075), (650, 30049), (755, 25870), (995, 19630), (1510, 12935), (1963, 9950), (1990, 9815), (2587, 7550), (3775, 5174), (3926, 4975)]