20761325

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{127}}^1\times {\mathrm{503}}^1$

素因数の和:653

約数の個数: 24

約数和(自身を含む): 27998208

約数和(自身を除く): 7236883

約数列:

[1, 5, 13, 25, 65, 127, 325, 503, 635, 1651, 2515, 3175, 6539, 8255, 12575, 32695, 41275, 63881, 163475, 319405, 830453, 1597025, 4152265, 20761325]

約数ペア:

[(1, 20761325), (5, 4152265), (13, 1597025), (25, 830453), (65, 319405), (127, 163475), (325, 63881), (503, 41275), (635, 32695), (1651, 12575), (2515, 8255), (3175, 6539)]