1806820

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1481}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 3859128

約数和(自身を除く): 2052308

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 1481, 2962, 5924, 7405, 14810, 29620, 90341, 180682, 361364, 451705, 903410, 1806820]

約数ペア:

[(1, 1806820), (2, 903410), (4, 451705), (5, 361364), (10, 180682), (20, 90341), (61, 29620), (122, 14810), (244, 7405), (305, 5924), (610, 2962), (1220, 1481)]