2009785900

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{439}}^1\times {\mathrm{2693}}^1$

素因数の和:3163

約数の個数: 72

約数和(自身を含む): 4630016160

約数和(自身を除く): 2620230260

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 439, 850, 878, 1700, 1756, 2195, 2693, 4390, 5386, 7463, 8780, 10772, 10975, 13465, 14926, 21950, 26930, 29852, 37315, 43900, 45781, 53860, 67325, 74630, 91562, 134650, 149260, 183124, 186575, 228905, 269300, 373150, 457810, 746300, 915620, 1144525, 1182227, 2289050, 2364454, 4578100, 4728908, 5911135, 11822270, 20097859, 23644540, 29555675, 40195718, 59111350, 80391436, 100489295, 118222700, 200978590, 401957180, 502446475, 1004892950, 2009785900]

約数ペア:

[(1, 2009785900), (2, 1004892950), (4, 502446475), (5, 401957180), (10, 200978590), (17, 118222700), (20, 100489295), (25, 80391436), (34, 59111350), (50, 40195718), (68, 29555675), (85, 23644540), (100, 20097859), (170, 11822270), (340, 5911135), (425, 4728908), (439, 4578100), (850, 2364454), (878, 2289050), (1700, 1182227), (1756, 1144525), (2195, 915620), (2693, 746300), (4390, 457810), (5386, 373150), (7463, 269300), (8780, 228905), (10772, 186575), (10975, 183124), (13465, 149260), (14926, 134650), (21950, 91562), (26930, 74630), (29852, 67325), (37315, 53860), (43900, 45781)]