20576640

素因数分解:

$2^7\times 3^1\times 5^1\times 7^1\times {\mathrm{1531}}^1$

素因数の和:1560

約数の個数: 128

約数和(自身を含む): 75006720

約数和(自身を除く): 54430080

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 56, 60, 64, 70, 80, 84, 96, 105, 112, 120, 128, 140, 160, 168, 192, 210, 224, 240, 280, 320, 336, 384, 420, 448, 480, 560, 640, 672, 840, 896, 960, 1120, 1344, 1531, 1680, 1920, 2240, 2688, 3062, 3360, 4480, 4593, 6124, 6720, 7655, 9186, 10717, 12248, 13440, 15310, 18372, 21434, 22965, 24496, 30620, 32151, 36744, 42868, 45930, 48992, 53585, 61240, 64302, 73488, 85736, 91860, 97984, 107170, 122480, 128604, 146976, 160755, 171472, 183720, 195968, 214340, 244960, 257208, 293952, 321510, 342944, 367440, 428680, 489920, 514416, 587904, 643020, 685888, 734880, 857360, 979840, 1028832, 1286040, 1371776, 1469760, 1714720, 2057664, 2572080, 2939520, 3429440, 4115328, 5144160, 6858880, 10288320, 20576640]

約数ペア:

[(1, 20576640), (2, 10288320), (3, 6858880), (4, 5144160), (5, 4115328), (6, 3429440), (7, 2939520), (8, 2572080), (10, 2057664), (12, 1714720), (14, 1469760), (15, 1371776), (16, 1286040), (20, 1028832), (21, 979840), (24, 857360), (28, 734880), (30, 685888), (32, 643020), (35, 587904), (40, 514416), (42, 489920), (48, 428680), (56, 367440), (60, 342944), (64, 321510), (70, 293952), (80, 257208), (84, 244960), (96, 214340), (105, 195968), (112, 183720), (120, 171472), (128, 160755), (140, 146976), (160, 128604), (168, 122480), (192, 107170), (210, 97984), (224, 91860), (240, 85736), (280, 73488), (320, 64302), (336, 61240), (384, 53585), (420, 48992), (448, 45930), (480, 42868), (560, 36744), (640, 32151), (672, 30620), (840, 24496), (896, 22965), (960, 21434), (1120, 18372), (1344, 15310), (1531, 13440), (1680, 12248), (1920, 10717), (2240, 9186), (2688, 7655), (3062, 6720), (3360, 6124), (4480, 4593)]