2018977040

素因数分解:

$2^4\times 5^1\times {\mathrm{25237213}}^1$

素因数の和:25237226

約数の個数: 20

約数和(自身を含む): 4694121804

約数和(自身を除く): 2675144764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25237213, 50474426, 100948852, 126186065, 201897704, 252372130, 403795408, 504744260, 1009488520, 2018977040]

約数ペア:

[(1, 2018977040), (2, 1009488520), (4, 504744260), (5, 403795408), (8, 252372130), (10, 201897704), (16, 126186065), (20, 100948852), (40, 50474426), (80, 25237213)]