17220880

素因数分解:

$2^4\times 5^1\times {\mathrm{215261}}^1$

素因数の和:215274

約数の個数: 20

約数和(自身を含む): 40038732

約数和(自身を除く): 22817852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 215261, 430522, 861044, 1076305, 1722088, 2152610, 3444176, 4305220, 8610440, 17220880]

約数ペア:

[(1, 17220880), (2, 8610440), (4, 4305220), (5, 3444176), (8, 2152610), (10, 1722088), (16, 1076305), (20, 861044), (40, 430522), (80, 215261)]