388889410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{427351}}^1$

素因数の和:427378

約数の個数: 32

約数和(自身を含む): 861541632

約数和(自身を除く): 472652222

約数列:

[1, 2, 5, 7, 10, 13, 14, 26, 35, 65, 70, 91, 130, 182, 455, 910, 427351, 854702, 2136755, 2991457, 4273510, 5555563, 5982914, 11111126, 14957285, 27777815, 29914570, 38888941, 55555630, 77777882, 194444705, 388889410]

約数ペア:

[(1, 388889410), (2, 194444705), (5, 77777882), (7, 55555630), (10, 38888941), (13, 29914570), (14, 27777815), (26, 14957285), (35, 11111126), (65, 5982914), (70, 5555563), (91, 4273510), (130, 2991457), (182, 2136755), (455, 854702), (910, 427351)]