21722800

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{4937}}^1$

素因数の和:4966

約数の個数: 60

約数和(自身を含む): 56945016

約数和(自身を除く): 35222216

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 176, 200, 220, 275, 400, 440, 550, 880, 1100, 2200, 4400, 4937, 9874, 19748, 24685, 39496, 49370, 54307, 78992, 98740, 108614, 123425, 197480, 217228, 246850, 271535, 394960, 434456, 493700, 543070, 868912, 987400, 1086140, 1357675, 1974800, 2172280, 2715350, 4344560, 5430700, 10861400, 21722800]

約数ペア:

[(1, 21722800), (2, 10861400), (4, 5430700), (5, 4344560), (8, 2715350), (10, 2172280), (11, 1974800), (16, 1357675), (20, 1086140), (22, 987400), (25, 868912), (40, 543070), (44, 493700), (50, 434456), (55, 394960), (80, 271535), (88, 246850), (100, 217228), (110, 197480), (176, 123425), (200, 108614), (220, 98740), (275, 78992), (400, 54307), (440, 49370), (550, 39496), (880, 24685), (1100, 19748), (2200, 9874), (4400, 4937)]