1640870

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2131}}^1$

素因数の和:2156

約数の個数: 32

約数和(自身を含む): 3684096

約数和(自身を除く): 2043226

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 2131, 4262, 10655, 14917, 21310, 23441, 29834, 46882, 74585, 117205, 149170, 164087, 234410, 328174, 820435, 1640870]

約数ペア:

[(1, 1640870), (2, 820435), (5, 328174), (7, 234410), (10, 164087), (11, 149170), (14, 117205), (22, 74585), (35, 46882), (55, 29834), (70, 23441), (77, 21310), (110, 14917), (154, 10655), (385, 4262), (770, 2131)]