20742400

素因数分解:

$2^8\times 5^2\times 7^1\times {\mathrm{463}}^1$

素因数の和:496

約数の個数: 108

約数和(自身を含む): 58801792

約数和(自身を除く): 38059392

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 32, 35, 40, 50, 56, 64, 70, 80, 100, 112, 128, 140, 160, 175, 200, 224, 256, 280, 320, 350, 400, 448, 463, 560, 640, 700, 800, 896, 926, 1120, 1280, 1400, 1600, 1792, 1852, 2240, 2315, 2800, 3200, 3241, 3704, 4480, 4630, 5600, 6400, 6482, 7408, 8960, 9260, 11200, 11575, 12964, 14816, 16205, 18520, 22400, 23150, 25928, 29632, 32410, 37040, 44800, 46300, 51856, 59264, 64820, 74080, 81025, 92600, 103712, 118528, 129640, 148160, 162050, 185200, 207424, 259280, 296320, 324100, 370400, 414848, 518560, 592640, 648200, 740800, 829696, 1037120, 1296400, 1481600, 2074240, 2592800, 2963200, 4148480, 5185600, 10371200, 20742400]

約数ペア:

[(1, 20742400), (2, 10371200), (4, 5185600), (5, 4148480), (7, 2963200), (8, 2592800), (10, 2074240), (14, 1481600), (16, 1296400), (20, 1037120), (25, 829696), (28, 740800), (32, 648200), (35, 592640), (40, 518560), (50, 414848), (56, 370400), (64, 324100), (70, 296320), (80, 259280), (100, 207424), (112, 185200), (128, 162050), (140, 148160), (160, 129640), (175, 118528), (200, 103712), (224, 92600), (256, 81025), (280, 74080), (320, 64820), (350, 59264), (400, 51856), (448, 46300), (463, 44800), (560, 37040), (640, 32410), (700, 29632), (800, 25928), (896, 23150), (926, 22400), (1120, 18520), (1280, 16205), (1400, 14816), (1600, 12964), (1792, 11575), (1852, 11200), (2240, 9260), (2315, 8960), (2800, 7408), (3200, 6482), (3241, 6400), (3704, 5600), (4480, 4630)]