1988784080

素因数分解:

$2^4\times 5^1\times {\mathrm{2273}}^1\times {\mathrm{10937}}^1$

素因数の和:13223

約数の個数: 40

約数和(自身を含む): 4626380232

約数和(自身を除く): 2637596152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2273, 4546, 9092, 10937, 11365, 18184, 21874, 22730, 36368, 43748, 45460, 54685, 87496, 90920, 109370, 174992, 181840, 218740, 437480, 874960, 24859801, 49719602, 99439204, 124299005, 198878408, 248598010, 397756816, 497196020, 994392040, 1988784080]

約数ペア:

[(1, 1988784080), (2, 994392040), (4, 497196020), (5, 397756816), (8, 248598010), (10, 198878408), (16, 124299005), (20, 99439204), (40, 49719602), (80, 24859801), (2273, 874960), (4546, 437480), (9092, 218740), (10937, 181840), (11365, 174992), (18184, 109370), (21874, 90920), (22730, 87496), (36368, 54685), (43748, 45460)]