278330975

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1583}}^1$

素因数の和:2147

約数の個数: 24

約数和(自身を含む): 372601152

約数和(自身を除く): 94270177

約数列:

[1, 5, 13, 25, 65, 325, 541, 1583, 2705, 7033, 7915, 13525, 20579, 35165, 39575, 102895, 175825, 514475, 856403, 4282015, 11133239, 21410075, 55666195, 278330975]

約数ペア:

[(1, 278330975), (5, 55666195), (13, 21410075), (25, 11133239), (65, 4282015), (325, 856403), (541, 514475), (1583, 175825), (2705, 102895), (7033, 39575), (7915, 35165), (13525, 20579)]