20863325

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{4111}}^1$

素因数の和:4157

約数の個数: 24

約数和(自身を含む): 30593280

約数和(自身を除く): 9729955

約数列:

[1, 5, 7, 25, 29, 35, 145, 175, 203, 725, 1015, 4111, 5075, 20555, 28777, 102775, 119219, 143885, 596095, 719425, 834533, 2980475, 4172665, 20863325]

約数ペア:

[(1, 20863325), (5, 4172665), (7, 2980475), (25, 834533), (29, 719425), (35, 596095), (145, 143885), (175, 119219), (203, 102775), (725, 28777), (1015, 20555), (4111, 5075)]