25691895

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{199}}^1$

素因数の和:380

約数の個数: 48

約数和(自身を含む): 47424000

約数和(自身を除く): 21732105

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 151, 171, 199, 285, 453, 597, 755, 855, 995, 1359, 1791, 2265, 2869, 2985, 3781, 6795, 8607, 8955, 11343, 14345, 18905, 25821, 30049, 34029, 43035, 56715, 90147, 129105, 150245, 170145, 270441, 450735, 570931, 1352205, 1712793, 2854655, 5138379, 8563965, 25691895]

約数ペア:

[(1, 25691895), (3, 8563965), (5, 5138379), (9, 2854655), (15, 1712793), (19, 1352205), (45, 570931), (57, 450735), (95, 270441), (151, 170145), (171, 150245), (199, 129105), (285, 90147), (453, 56715), (597, 43035), (755, 34029), (855, 30049), (995, 25821), (1359, 18905), (1791, 14345), (2265, 11343), (2869, 8955), (2985, 8607), (3781, 6795)]