12695990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{66821}}^1$

素因数の和:66847

約数の個数: 16

約数和(自身を含む): 24055920

約数和(自身を除く): 11359930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 66821, 133642, 334105, 668210, 1269599, 2539198, 6347995, 12695990]

約数ペア:

[(1, 12695990), (2, 6347995), (5, 2539198), (10, 1269599), (19, 668210), (38, 334105), (95, 133642), (190, 66821)]