20377280

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{827}}^1$

素因数の和:862

約数の個数: 112

約数和(自身を含む): 60569856

約数和(自身を除く): 40192576

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 32, 35, 40, 44, 55, 56, 64, 70, 77, 80, 88, 110, 112, 140, 154, 160, 176, 220, 224, 280, 308, 320, 352, 385, 440, 448, 560, 616, 704, 770, 827, 880, 1120, 1232, 1540, 1654, 1760, 2240, 2464, 3080, 3308, 3520, 4135, 4928, 5789, 6160, 6616, 8270, 9097, 11578, 12320, 13232, 16540, 18194, 23156, 24640, 26464, 28945, 33080, 36388, 45485, 46312, 52928, 57890, 63679, 66160, 72776, 90970, 92624, 115780, 127358, 132320, 145552, 181940, 185248, 231560, 254716, 264640, 291104, 318395, 363880, 370496, 463120, 509432, 582208, 636790, 727760, 926240, 1018864, 1273580, 1455520, 1852480, 2037728, 2547160, 2911040, 4075456, 5094320, 10188640, 20377280]

約数ペア:

[(1, 20377280), (2, 10188640), (4, 5094320), (5, 4075456), (7, 2911040), (8, 2547160), (10, 2037728), (11, 1852480), (14, 1455520), (16, 1273580), (20, 1018864), (22, 926240), (28, 727760), (32, 636790), (35, 582208), (40, 509432), (44, 463120), (55, 370496), (56, 363880), (64, 318395), (70, 291104), (77, 264640), (80, 254716), (88, 231560), (110, 185248), (112, 181940), (140, 145552), (154, 132320), (160, 127358), (176, 115780), (220, 92624), (224, 90970), (280, 72776), (308, 66160), (320, 63679), (352, 57890), (385, 52928), (440, 46312), (448, 45485), (560, 36388), (616, 33080), (704, 28945), (770, 26464), (827, 24640), (880, 23156), (1120, 18194), (1232, 16540), (1540, 13232), (1654, 12320), (1760, 11578), (2240, 9097), (2464, 8270), (3080, 6616), (3308, 6160), (3520, 5789), (4135, 4928)]