128213180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{136397}}^1$

素因数の和:136453

約数の個数: 24

約数和(自身を含む): 274978368

約数和(自身を除く): 146765188

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 136397, 272794, 545588, 681985, 1363970, 2727940, 6410659, 12821318, 25642636, 32053295, 64106590, 128213180]

約数ペア:

[(1, 128213180), (2, 64106590), (4, 32053295), (5, 25642636), (10, 12821318), (20, 6410659), (47, 2727940), (94, 1363970), (188, 681985), (235, 545588), (470, 272794), (940, 136397)]