16021780

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{9001}}^1$

素因数の和:9099

約数の個数: 24

約数和(自身を含む): 34027560

約数和(自身を除く): 18005780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 9001, 18002, 36004, 45005, 90010, 180020, 801089, 1602178, 3204356, 4005445, 8010890, 16021780]

約数ペア:

[(1, 16021780), (2, 8010890), (4, 4005445), (5, 3204356), (10, 1602178), (20, 801089), (89, 180020), (178, 90010), (356, 45005), (445, 36004), (890, 18002), (1780, 9001)]