80628140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{98327}}^1$

素因数の和:98377

約数の個数: 24

約数和(自身を含む): 173450592

約数和(自身を除く): 92822452

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 98327, 196654, 393308, 491635, 983270, 1966540, 4031407, 8062814, 16125628, 20157035, 40314070, 80628140]

約数ペア:

[(1, 80628140), (2, 40314070), (4, 20157035), (5, 16125628), (10, 8062814), (20, 4031407), (41, 1966540), (82, 983270), (164, 491635), (205, 393308), (410, 196654), (820, 98327)]