1288985020

素因数分解:

$2^2\times 5^1\times {\mathrm{83}}^1\times {\mathrm{776497}}^1$

素因数の和:776589

約数の個数: 24

約数和(自身を含む): 2739484944

約数和(自身を除く): 1450499924

約数列:

[1, 2, 4, 5, 10, 20, 83, 166, 332, 415, 830, 1660, 776497, 1552994, 3105988, 3882485, 7764970, 15529940, 64449251, 128898502, 257797004, 322246255, 644492510, 1288985020]

約数ペア:

[(1, 1288985020), (2, 644492510), (4, 322246255), (5, 257797004), (10, 128898502), (20, 64449251), (83, 15529940), (166, 7764970), (332, 3882485), (415, 3105988), (830, 1552994), (1660, 776497)]