81038800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10663}}^1$

素因数の和:10700

約数の個数: 60

約数和(自身を含む): 204962080

約数和(自身を除く): 123923280

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 10663, 21326, 42652, 53315, 85304, 106630, 170608, 202597, 213260, 266575, 405194, 426520, 533150, 810388, 853040, 1012985, 1066300, 1620776, 2025970, 2132600, 3241552, 4051940, 4265200, 5064925, 8103880, 10129850, 16207760, 20259700, 40519400, 81038800]

約数ペア:

[(1, 81038800), (2, 40519400), (4, 20259700), (5, 16207760), (8, 10129850), (10, 8103880), (16, 5064925), (19, 4265200), (20, 4051940), (25, 3241552), (38, 2132600), (40, 2025970), (50, 1620776), (76, 1066300), (80, 1012985), (95, 853040), (100, 810388), (152, 533150), (190, 426520), (200, 405194), (304, 266575), (380, 213260), (400, 202597), (475, 170608), (760, 106630), (950, 85304), (1520, 53315), (1900, 42652), (3800, 21326), (7600, 10663)]