20760040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{74143}}^1$

素因数の和:74161

約数の個数: 32

約数和(自身を含む): 53383680

約数和(自身を除く): 32623640

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 74143, 148286, 296572, 370715, 519001, 593144, 741430, 1038002, 1482860, 2076004, 2595005, 2965720, 4152008, 5190010, 10380020, 20760040]

約数ペア:

[(1, 20760040), (2, 10380020), (4, 5190010), (5, 4152008), (7, 2965720), (8, 2595005), (10, 2076004), (14, 1482860), (20, 1038002), (28, 741430), (35, 593144), (40, 519001), (56, 370715), (70, 296572), (140, 148286), (280, 74143)]