31393928

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{2909}}^1$

素因数の和:3005

約数の個数: 32

約数和(自身を含む): 62856000

約数和(自身を除く): 31462072

約数列:

[1, 2, 4, 8, 19, 38, 71, 76, 142, 152, 284, 568, 1349, 2698, 2909, 5396, 5818, 10792, 11636, 23272, 55271, 110542, 206539, 221084, 413078, 442168, 826156, 1652312, 3924241, 7848482, 15696964, 31393928]

約数ペア:

[(1, 31393928), (2, 15696964), (4, 7848482), (8, 3924241), (19, 1652312), (38, 826156), (71, 442168), (76, 413078), (142, 221084), (152, 206539), (284, 110542), (568, 55271), (1349, 23272), (2698, 11636), (2909, 10792), (5396, 5818)]