66551800

素因数分解:

$2^3\times 5^2\times 7^2\times {\mathrm{6791}}^1$

素因数の和:6821

約数の個数: 72

約数和(自身を含む): 180021960

約数和(自身を除く): 113470160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 25, 28, 35, 40, 49, 50, 56, 70, 98, 100, 140, 175, 196, 200, 245, 280, 350, 392, 490, 700, 980, 1225, 1400, 1960, 2450, 4900, 6791, 9800, 13582, 27164, 33955, 47537, 54328, 67910, 95074, 135820, 169775, 190148, 237685, 271640, 332759, 339550, 380296, 475370, 665518, 679100, 950740, 1188425, 1331036, 1358200, 1663795, 1901480, 2376850, 2662072, 3327590, 4753700, 6655180, 8318975, 9507400, 13310360, 16637950, 33275900, 66551800]

約数ペア:

[(1, 66551800), (2, 33275900), (4, 16637950), (5, 13310360), (7, 9507400), (8, 8318975), (10, 6655180), (14, 4753700), (20, 3327590), (25, 2662072), (28, 2376850), (35, 1901480), (40, 1663795), (49, 1358200), (50, 1331036), (56, 1188425), (70, 950740), (98, 679100), (100, 665518), (140, 475370), (175, 380296), (196, 339550), (200, 332759), (245, 271640), (280, 237685), (350, 190148), (392, 169775), (490, 135820), (700, 95074), (980, 67910), (1225, 54328), (1400, 47537), (1960, 33955), (2450, 27164), (4900, 13582), (6791, 9800)]