20394240

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{113}}^1$

素因数の和:184

約数の個数: 144

約数和(自身を含む): 67108608

約数和(自身を除く): 46714368

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 47, 48, 60, 64, 80, 94, 96, 113, 120, 128, 141, 160, 188, 192, 226, 235, 240, 256, 282, 320, 339, 376, 384, 452, 470, 480, 564, 565, 640, 678, 705, 752, 768, 904, 940, 960, 1128, 1130, 1280, 1356, 1410, 1504, 1695, 1808, 1880, 1920, 2256, 2260, 2712, 2820, 3008, 3390, 3616, 3760, 3840, 4512, 4520, 5311, 5424, 5640, 6016, 6780, 7232, 7520, 9024, 9040, 10622, 10848, 11280, 12032, 13560, 14464, 15040, 15933, 18048, 18080, 21244, 21696, 22560, 26555, 27120, 28928, 30080, 31866, 36096, 36160, 42488, 43392, 45120, 53110, 54240, 60160, 63732, 72320, 79665, 84976, 86784, 90240, 106220, 108480, 127464, 144640, 159330, 169952, 180480, 212440, 216960, 254928, 318660, 339904, 424880, 433920, 509856, 637320, 679808, 849760, 1019712, 1274640, 1359616, 1699520, 2039424, 2549280, 3399040, 4078848, 5098560, 6798080, 10197120, 20394240]

約数ペア:

[(1, 20394240), (2, 10197120), (3, 6798080), (4, 5098560), (5, 4078848), (6, 3399040), (8, 2549280), (10, 2039424), (12, 1699520), (15, 1359616), (16, 1274640), (20, 1019712), (24, 849760), (30, 679808), (32, 637320), (40, 509856), (47, 433920), (48, 424880), (60, 339904), (64, 318660), (80, 254928), (94, 216960), (96, 212440), (113, 180480), (120, 169952), (128, 159330), (141, 144640), (160, 127464), (188, 108480), (192, 106220), (226, 90240), (235, 86784), (240, 84976), (256, 79665), (282, 72320), (320, 63732), (339, 60160), (376, 54240), (384, 53110), (452, 45120), (470, 43392), (480, 42488), (564, 36160), (565, 36096), (640, 31866), (678, 30080), (705, 28928), (752, 27120), (768, 26555), (904, 22560), (940, 21696), (960, 21244), (1128, 18080), (1130, 18048), (1280, 15933), (1356, 15040), (1410, 14464), (1504, 13560), (1695, 12032), (1808, 11280), (1880, 10848), (1920, 10622), (2256, 9040), (2260, 9024), (2712, 7520), (2820, 7232), (3008, 6780), (3390, 6016), (3616, 5640), (3760, 5424), (3840, 5311), (4512, 4520)]