20799520

素因数分解:

$2^5\times 5^1\times 7^3\times {\mathrm{379}}^1$

素因数の和:415

約数の個数: 96

約数和(自身を含む): 57456000

約数和(自身を除く): 36656480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 343, 379, 392, 490, 560, 686, 758, 784, 980, 1120, 1372, 1516, 1568, 1715, 1895, 1960, 2653, 2744, 3032, 3430, 3790, 3920, 5306, 5488, 6064, 6860, 7580, 7840, 10612, 10976, 12128, 13265, 13720, 15160, 18571, 21224, 26530, 27440, 30320, 37142, 42448, 53060, 54880, 60640, 74284, 84896, 92855, 106120, 129997, 148568, 185710, 212240, 259994, 297136, 371420, 424480, 519988, 594272, 649985, 742840, 1039976, 1299970, 1485680, 2079952, 2599940, 2971360, 4159904, 5199880, 10399760, 20799520]

約数ペア:

[(1, 20799520), (2, 10399760), (4, 5199880), (5, 4159904), (7, 2971360), (8, 2599940), (10, 2079952), (14, 1485680), (16, 1299970), (20, 1039976), (28, 742840), (32, 649985), (35, 594272), (40, 519988), (49, 424480), (56, 371420), (70, 297136), (80, 259994), (98, 212240), (112, 185710), (140, 148568), (160, 129997), (196, 106120), (224, 92855), (245, 84896), (280, 74284), (343, 60640), (379, 54880), (392, 53060), (490, 42448), (560, 37142), (686, 30320), (758, 27440), (784, 26530), (980, 21224), (1120, 18571), (1372, 15160), (1516, 13720), (1568, 13265), (1715, 12128), (1895, 10976), (1960, 10612), (2653, 7840), (2744, 7580), (3032, 6860), (3430, 6064), (3790, 5488), (3920, 5306)]