25289320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{499}}^1$

素因数の和:698

約数の個数: 64

約数和(自身を含む): 65520000

約数和(自身を除く): 40230680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 181, 280, 362, 499, 724, 905, 998, 1267, 1448, 1810, 1996, 2495, 2534, 3493, 3620, 3992, 4990, 5068, 6335, 6986, 7240, 9980, 10136, 12670, 13972, 17465, 19960, 25340, 27944, 34930, 50680, 69860, 90319, 139720, 180638, 361276, 451595, 632233, 722552, 903190, 1264466, 1806380, 2528932, 3161165, 3612760, 5057864, 6322330, 12644660, 25289320]

約数ペア:

[(1, 25289320), (2, 12644660), (4, 6322330), (5, 5057864), (7, 3612760), (8, 3161165), (10, 2528932), (14, 1806380), (20, 1264466), (28, 903190), (35, 722552), (40, 632233), (56, 451595), (70, 361276), (140, 180638), (181, 139720), (280, 90319), (362, 69860), (499, 50680), (724, 34930), (905, 27944), (998, 25340), (1267, 19960), (1448, 17465), (1810, 13972), (1996, 12670), (2495, 10136), (2534, 9980), (3493, 7240), (3620, 6986), (3992, 6335), (4990, 5068)]