2790025

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{149}}^1$

素因数の和:273

約数の個数: 24

約数和(自身を含む): 4017600

約数和(自身を除く): 1227575

約数列:

[1, 5, 7, 25, 35, 107, 149, 175, 535, 745, 749, 1043, 2675, 3725, 3745, 5215, 15943, 18725, 26075, 79715, 111601, 398575, 558005, 2790025]

約数ペア:

[(1, 2790025), (5, 558005), (7, 398575), (25, 111601), (35, 79715), (107, 26075), (149, 18725), (175, 15943), (535, 5215), (745, 3745), (749, 3725), (1043, 2675)]