28989050

素因数分解:

$2^1\times 5^2\times {\mathrm{41}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:311

約数の個数: 48

約数和(自身を含む): 56246400

約数和(自身を除く): 27257350

約数列:

[1, 2, 5, 10, 25, 41, 50, 79, 82, 158, 179, 205, 358, 395, 410, 790, 895, 1025, 1790, 1975, 2050, 3239, 3950, 4475, 6478, 7339, 8950, 14141, 14678, 16195, 28282, 32390, 36695, 70705, 73390, 80975, 141410, 161950, 183475, 353525, 366950, 579781, 707050, 1159562, 2898905, 5797810, 14494525, 28989050]

約数ペア:

[(1, 28989050), (2, 14494525), (5, 5797810), (10, 2898905), (25, 1159562), (41, 707050), (50, 579781), (79, 366950), (82, 353525), (158, 183475), (179, 161950), (205, 141410), (358, 80975), (395, 73390), (410, 70705), (790, 36695), (895, 32390), (1025, 28282), (1790, 16195), (1975, 14678), (2050, 14141), (3239, 8950), (3950, 7339), (4475, 6478)]