201661880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{720221}}^1$

素因数の和:720239

約数の個数: 32

約数和(自身を含む): 518559840

約数和(自身を除く): 316897960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 720221, 1440442, 2880884, 3601105, 5041547, 5761768, 7202210, 10083094, 14404420, 20166188, 25207735, 28808840, 40332376, 50415470, 100830940, 201661880]

約数ペア:

[(1, 201661880), (2, 100830940), (4, 50415470), (5, 40332376), (7, 28808840), (8, 25207735), (10, 20166188), (14, 14404420), (20, 10083094), (28, 7202210), (35, 5761768), (40, 5041547), (56, 3601105), (70, 2880884), (140, 1440442), (280, 720221)]