20471040

素因数分解:

$2^8\times 3^2\times 5^1\times {\mathrm{1777}}^1$

素因数の和:1804

約数の個数: 108

約数和(自身を含む): 70867524

約数和(自身を除く): 50396484

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 128, 144, 160, 180, 192, 240, 256, 288, 320, 360, 384, 480, 576, 640, 720, 768, 960, 1152, 1280, 1440, 1777, 1920, 2304, 2880, 3554, 3840, 5331, 5760, 7108, 8885, 10662, 11520, 14216, 15993, 17770, 21324, 26655, 28432, 31986, 35540, 42648, 53310, 56864, 63972, 71080, 79965, 85296, 106620, 113728, 127944, 142160, 159930, 170592, 213240, 227456, 255888, 284320, 319860, 341184, 426480, 454912, 511776, 568640, 639720, 682368, 852960, 1023552, 1137280, 1279440, 1364736, 1705920, 2047104, 2274560, 2558880, 3411840, 4094208, 5117760, 6823680, 10235520, 20471040]

約数ペア:

[(1, 20471040), (2, 10235520), (3, 6823680), (4, 5117760), (5, 4094208), (6, 3411840), (8, 2558880), (9, 2274560), (10, 2047104), (12, 1705920), (15, 1364736), (16, 1279440), (18, 1137280), (20, 1023552), (24, 852960), (30, 682368), (32, 639720), (36, 568640), (40, 511776), (45, 454912), (48, 426480), (60, 341184), (64, 319860), (72, 284320), (80, 255888), (90, 227456), (96, 213240), (120, 170592), (128, 159930), (144, 142160), (160, 127944), (180, 113728), (192, 106620), (240, 85296), (256, 79965), (288, 71080), (320, 63972), (360, 56864), (384, 53310), (480, 42648), (576, 35540), (640, 31986), (720, 28432), (768, 26655), (960, 21324), (1152, 17770), (1280, 15993), (1440, 14216), (1777, 11520), (1920, 10662), (2304, 8885), (2880, 7108), (3554, 5760), (3840, 5331)]