256038720

素因数分解:

$2^6\times 3^1\times 5^1\times 7^2\times {\mathrm{5443}}^1$

素因数の和:5477

約数の個数: 168

約数和(自身を含む): 945818784

約数和(自身を除く): 689780064

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, 49, 56, 60, 64, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 192, 196, 210, 224, 240, 245, 280, 294, 320, 336, 392, 420, 448, 480, 490, 560, 588, 672, 735, 784, 840, 960, 980, 1120, 1176, 1344, 1470, 1568, 1680, 1960, 2240, 2352, 2940, 3136, 3360, 3920, 4704, 5443, 5880, 6720, 7840, 9408, 10886, 11760, 15680, 16329, 21772, 23520, 27215, 32658, 38101, 43544, 47040, 54430, 65316, 76202, 81645, 87088, 108860, 114303, 130632, 152404, 163290, 174176, 190505, 217720, 228606, 261264, 266707, 304808, 326580, 348352, 381010, 435440, 457212, 522528, 533414, 571515, 609616, 653160, 762020, 800121, 870880, 914424, 1045056, 1066828, 1143030, 1219232, 1306320, 1333535, 1524040, 1600242, 1741760, 1828848, 2133656, 2286060, 2438464, 2612640, 2667070, 3048080, 3200484, 3657696, 4000605, 4267312, 4572120, 5225280, 5334140, 6096160, 6400968, 7315392, 8001210, 8534624, 9144240, 10668280, 12192320, 12801936, 16002420, 17069248, 18288480, 21336560, 25603872, 32004840, 36576960, 42673120, 51207744, 64009680, 85346240, 128019360, 256038720]

約数ペア:

[(1, 256038720), (2, 128019360), (3, 85346240), (4, 64009680), (5, 51207744), (6, 42673120), (7, 36576960), (8, 32004840), (10, 25603872), (12, 21336560), (14, 18288480), (15, 17069248), (16, 16002420), (20, 12801936), (21, 12192320), (24, 10668280), (28, 9144240), (30, 8534624), (32, 8001210), (35, 7315392), (40, 6400968), (42, 6096160), (48, 5334140), (49, 5225280), (56, 4572120), (60, 4267312), (64, 4000605), (70, 3657696), (80, 3200484), (84, 3048080), (96, 2667070), (98, 2612640), (105, 2438464), (112, 2286060), (120, 2133656), (140, 1828848), (147, 1741760), (160, 1600242), (168, 1524040), (192, 1333535), (196, 1306320), (210, 1219232), (224, 1143030), (240, 1066828), (245, 1045056), (280, 914424), (294, 870880), (320, 800121), (336, 762020), (392, 653160), (420, 609616), (448, 571515), (480, 533414), (490, 522528), (560, 457212), (588, 435440), (672, 381010), (735, 348352), (784, 326580), (840, 304808), (960, 266707), (980, 261264), (1120, 228606), (1176, 217720), (1344, 190505), (1470, 174176), (1568, 163290), (1680, 152404), (1960, 130632), (2240, 114303), (2352, 108860), (2940, 87088), (3136, 81645), (3360, 76202), (3920, 65316), (4704, 54430), (5443, 47040), (5880, 43544), (6720, 38101), (7840, 32658), (9408, 27215), (10886, 23520), (11760, 21772), (15680, 16329)]