18518390

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{2131}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 36840960

約数和(自身を除く): 18322570

約数列:

[1, 2, 5, 10, 11, 22, 55, 79, 110, 158, 395, 790, 869, 1738, 2131, 4262, 4345, 8690, 10655, 21310, 23441, 46882, 117205, 168349, 234410, 336698, 841745, 1683490, 1851839, 3703678, 9259195, 18518390]

約数ペア:

[(1, 18518390), (2, 9259195), (5, 3703678), (10, 1851839), (11, 1683490), (22, 841745), (55, 336698), (79, 234410), (110, 168349), (158, 117205), (395, 46882), (790, 23441), (869, 21310), (1738, 10655), (2131, 8690), (4262, 4345)]