28581985

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1$

素因数の和:277

約数の個数: 32

約数和(自身を含む): 38338560

約数和(自身を除く): 9756575

約数列:

[1, 5, 19, 23, 95, 103, 115, 127, 437, 515, 635, 1957, 2185, 2369, 2413, 2921, 9785, 11845, 12065, 13081, 14605, 45011, 55499, 65405, 225055, 248539, 277495, 300863, 1242695, 1504315, 5716397, 28581985]

約数ペア:

[(1, 28581985), (5, 5716397), (19, 1504315), (23, 1242695), (95, 300863), (103, 277495), (115, 248539), (127, 225055), (437, 65405), (515, 55499), (635, 45011), (1957, 14605), (2185, 13081), (2369, 12065), (2413, 11845), (2921, 9785)]