977768080

素因数分解:

$2^4\times 5^1\times {\mathrm{12222101}}^1$

素因数の和:12222114

約数の個数: 20

約数和(自身を含む): 2273310972

約数和(自身を除く): 1295542892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 12222101, 24444202, 48888404, 61110505, 97776808, 122221010, 195553616, 244442020, 488884040, 977768080]

約数ペア:

[(1, 977768080), (2, 488884040), (4, 244442020), (5, 195553616), (8, 122221010), (10, 97776808), (16, 61110505), (20, 48888404), (40, 24444202), (80, 12222101)]