28479500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{103}}^1$

素因数の和:208

約数の個数: 96

約数和(自身を含む): 72683520

約数和(自身を除く): 44204020

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 79, 100, 103, 125, 140, 158, 175, 206, 250, 316, 350, 395, 412, 500, 515, 553, 700, 721, 790, 875, 1030, 1106, 1442, 1580, 1750, 1975, 2060, 2212, 2575, 2765, 2884, 3500, 3605, 3950, 5150, 5530, 7210, 7900, 8137, 9875, 10300, 11060, 12875, 13825, 14420, 16274, 18025, 19750, 25750, 27650, 32548, 36050, 39500, 40685, 51500, 55300, 56959, 69125, 72100, 81370, 90125, 113918, 138250, 162740, 180250, 203425, 227836, 276500, 284795, 360500, 406850, 569590, 813700, 1017125, 1139180, 1423975, 2034250, 2847950, 4068500, 5695900, 7119875, 14239750, 28479500]

約数ペア:

[(1, 28479500), (2, 14239750), (4, 7119875), (5, 5695900), (7, 4068500), (10, 2847950), (14, 2034250), (20, 1423975), (25, 1139180), (28, 1017125), (35, 813700), (50, 569590), (70, 406850), (79, 360500), (100, 284795), (103, 276500), (125, 227836), (140, 203425), (158, 180250), (175, 162740), (206, 138250), (250, 113918), (316, 90125), (350, 81370), (395, 72100), (412, 69125), (500, 56959), (515, 55300), (553, 51500), (700, 40685), (721, 39500), (790, 36050), (875, 32548), (1030, 27650), (1106, 25750), (1442, 19750), (1580, 18025), (1750, 16274), (1975, 14420), (2060, 13825), (2212, 12875), (2575, 11060), (2765, 10300), (2884, 9875), (3500, 8137), (3605, 7900), (3950, 7210), (5150, 5530)]