85709440

素因数分解:

$2^7\times 5^1\times {\mathrm{157}}^1\times {\mathrm{853}}^1$

素因数の和:1029

約数の個数: 64

約数和(自身を含む): 206445960

約数和(自身を除く): 120736520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 157, 160, 314, 320, 628, 640, 785, 853, 1256, 1570, 1706, 2512, 3140, 3412, 4265, 5024, 6280, 6824, 8530, 10048, 12560, 13648, 17060, 20096, 25120, 27296, 34120, 50240, 54592, 68240, 100480, 109184, 133921, 136480, 267842, 272960, 535684, 545920, 669605, 1071368, 1339210, 2142736, 2678420, 4285472, 5356840, 8570944, 10713680, 17141888, 21427360, 42854720, 85709440]

約数ペア:

[(1, 85709440), (2, 42854720), (4, 21427360), (5, 17141888), (8, 10713680), (10, 8570944), (16, 5356840), (20, 4285472), (32, 2678420), (40, 2142736), (64, 1339210), (80, 1071368), (128, 669605), (157, 545920), (160, 535684), (314, 272960), (320, 267842), (628, 136480), (640, 133921), (785, 109184), (853, 100480), (1256, 68240), (1570, 54592), (1706, 50240), (2512, 34120), (3140, 27296), (3412, 25120), (4265, 20096), (5024, 17060), (6280, 13648), (6824, 12560), (8530, 10048)]