18820325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{461}}^1$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 24748416

約数和(自身を除く): 5928091

約数列:

[1, 5, 23, 25, 71, 115, 355, 461, 575, 1633, 1775, 2305, 8165, 10603, 11525, 32731, 40825, 53015, 163655, 265075, 752813, 818275, 3764065, 18820325]

約数ペア:

[(1, 18820325), (5, 3764065), (23, 818275), (25, 752813), (71, 265075), (115, 163655), (355, 53015), (461, 40825), (575, 32731), (1633, 11525), (1775, 10603), (2305, 8165)]