20364160

素因数分解:

$2^7\times 5^1\times {\mathrm{47}}^1\times {\mathrm{677}}^1$

素因数の和:743

約数の個数: 64

約数和(自身を含む): 49792320

約数和(自身を除く): 29428160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 64, 80, 94, 128, 160, 188, 235, 320, 376, 470, 640, 677, 752, 940, 1354, 1504, 1880, 2708, 3008, 3385, 3760, 5416, 6016, 6770, 7520, 10832, 13540, 15040, 21664, 27080, 30080, 31819, 43328, 54160, 63638, 86656, 108320, 127276, 159095, 216640, 254552, 318190, 433280, 509104, 636380, 1018208, 1272760, 2036416, 2545520, 4072832, 5091040, 10182080, 20364160]

約数ペア:

[(1, 20364160), (2, 10182080), (4, 5091040), (5, 4072832), (8, 2545520), (10, 2036416), (16, 1272760), (20, 1018208), (32, 636380), (40, 509104), (47, 433280), (64, 318190), (80, 254552), (94, 216640), (128, 159095), (160, 127276), (188, 108320), (235, 86656), (320, 63638), (376, 54160), (470, 43328), (640, 31819), (677, 30080), (752, 27080), (940, 21664), (1354, 15040), (1504, 13540), (1880, 10832), (2708, 7520), (3008, 6770), (3385, 6016), (3760, 5416)]