80223820

素因数分解:

$2^2\times 5^1\times {\mathrm{191}}^1\times {\mathrm{21001}}^1$

素因数の和:21201

約数の個数: 24

約数和(自身を含む): 169360128

約数和(自身を除く): 89136308

約数列:

[1, 2, 4, 5, 10, 20, 191, 382, 764, 955, 1910, 3820, 21001, 42002, 84004, 105005, 210010, 420020, 4011191, 8022382, 16044764, 20055955, 40111910, 80223820]

約数ペア:

[(1, 80223820), (2, 40111910), (4, 20055955), (5, 16044764), (10, 8022382), (20, 4011191), (191, 420020), (382, 210010), (764, 105005), (955, 84004), (1910, 42002), (3820, 21001)]