81390566

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1\times {\mathrm{311}}^1$

素因数の和:500

約数の個数: 32

約数和(自身を含む): 132088320

約数和(自身を除く): 50697754

約数列:

[1, 2, 19, 38, 71, 97, 142, 194, 311, 622, 1349, 1843, 2698, 3686, 5909, 6887, 11818, 13774, 22081, 30167, 44162, 60334, 130853, 261706, 419539, 573173, 839078, 1146346, 2141857, 4283714, 40695283, 81390566]

約数ペア:

[(1, 81390566), (2, 40695283), (19, 4283714), (38, 2141857), (71, 1146346), (97, 839078), (142, 573173), (194, 419539), (311, 261706), (622, 130853), (1349, 60334), (1843, 44162), (2698, 30167), (3686, 22081), (5909, 13774), (6887, 11818)]