221000090

素因数分解:

$2^1\times 5^1\times {\mathrm{307}}^1\times {\mathrm{71987}}^1$

素因数の和:72301

約数の個数: 16

約数和(自身を含む): 399101472

約数和(自身を除く): 178101382

約数列:

[1, 2, 5, 10, 307, 614, 1535, 3070, 71987, 143974, 359935, 719870, 22100009, 44200018, 110500045, 221000090]

約数ペア:

[(1, 221000090), (2, 110500045), (5, 44200018), (10, 22100009), (307, 719870), (614, 359935), (1535, 143974), (3070, 71987)]