245284

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1$

素因数の和:159

約数の個数: 24

約数和(自身を含む): 476280

約数和(自身を除く): 230996

約数列:

[1, 2, 4, 13, 26, 52, 53, 89, 106, 178, 212, 356, 689, 1157, 1378, 2314, 2756, 4628, 4717, 9434, 18868, 61321, 122642, 245284]

約数ペア:

[(1, 245284), (2, 122642), (4, 61321), (13, 18868), (26, 9434), (52, 4717), (53, 4628), (89, 2756), (106, 2314), (178, 1378), (212, 1157), (356, 689)]