165700880

素因数分解:

$2^4\times 5^1\times {\mathrm{2071261}}^1$

素因数の和:2071274

約数の個数: 20

約数和(自身を含む): 385254732

約数和(自身を除く): 219553852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2071261, 4142522, 8285044, 10356305, 16570088, 20712610, 33140176, 41425220, 82850440, 165700880]

約数ペア:

[(1, 165700880), (2, 82850440), (4, 41425220), (5, 33140176), (8, 20712610), (10, 16570088), (16, 10356305), (20, 8285044), (40, 4142522), (80, 2071261)]