389621240

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{91033}}^1$

素因数の和:91151

約数の個数: 32

約数和(自身を含む): 884850480

約数和(自身を除く): 495229240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 91033, 182066, 364132, 455165, 728264, 910330, 1820660, 3641320, 9740531, 19481062, 38962124, 48702655, 77924248, 97405310, 194810620, 389621240]

約数ペア:

[(1, 389621240), (2, 194810620), (4, 97405310), (5, 77924248), (8, 48702655), (10, 38962124), (20, 19481062), (40, 9740531), (107, 3641320), (214, 1820660), (428, 910330), (535, 728264), (856, 455165), (1070, 364132), (2140, 182066), (4280, 91033)]