2661425

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{431}}^1$

素因数の和:473

約数の個数: 24

約数和(自身を含む): 3749760

約数和(自身を除く): 1088335

約数列:

[1, 5, 13, 19, 25, 65, 95, 247, 325, 431, 475, 1235, 2155, 5603, 6175, 8189, 10775, 28015, 40945, 106457, 140075, 204725, 532285, 2661425]

約数ペア:

[(1, 2661425), (5, 532285), (13, 204725), (19, 140075), (25, 106457), (65, 40945), (95, 28015), (247, 10775), (325, 8189), (431, 6175), (475, 5603), (1235, 2155)]