19277920

素因数分解:

$2^5\times 5^1\times {\mathrm{71}}^1\times {\mathrm{1697}}^1$

素因数の和:1783

約数の個数: 48

約数和(自身を含む): 46212768

約数和(自身を除く): 26934848

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 71, 80, 142, 160, 284, 355, 568, 710, 1136, 1420, 1697, 2272, 2840, 3394, 5680, 6788, 8485, 11360, 13576, 16970, 27152, 33940, 54304, 67880, 120487, 135760, 240974, 271520, 481948, 602435, 963896, 1204870, 1927792, 2409740, 3855584, 4819480, 9638960, 19277920]

約数ペア:

[(1, 19277920), (2, 9638960), (4, 4819480), (5, 3855584), (8, 2409740), (10, 1927792), (16, 1204870), (20, 963896), (32, 602435), (40, 481948), (71, 271520), (80, 240974), (142, 135760), (160, 120487), (284, 67880), (355, 54304), (568, 33940), (710, 27152), (1136, 16970), (1420, 13576), (1697, 11360), (2272, 8485), (2840, 6788), (3394, 5680)]