20736320

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:208

約数の個数: 112

約数和(自身を含む): 55522368

約数和(自身を除く): 34786048

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 43, 44, 55, 64, 80, 86, 88, 110, 137, 160, 172, 176, 215, 220, 274, 320, 344, 352, 430, 440, 473, 548, 685, 688, 704, 860, 880, 946, 1096, 1370, 1376, 1507, 1720, 1760, 1892, 2192, 2365, 2740, 2752, 3014, 3440, 3520, 3784, 4384, 4730, 5480, 5891, 6028, 6880, 7535, 7568, 8768, 9460, 10960, 11782, 12056, 13760, 15070, 15136, 18920, 21920, 23564, 24112, 29455, 30140, 30272, 37840, 43840, 47128, 48224, 58910, 60280, 64801, 75680, 94256, 96448, 117820, 120560, 129602, 151360, 188512, 235640, 241120, 259204, 324005, 377024, 471280, 482240, 518408, 648010, 942560, 1036816, 1296020, 1885120, 2073632, 2592040, 4147264, 5184080, 10368160, 20736320]

約数ペア:

[(1, 20736320), (2, 10368160), (4, 5184080), (5, 4147264), (8, 2592040), (10, 2073632), (11, 1885120), (16, 1296020), (20, 1036816), (22, 942560), (32, 648010), (40, 518408), (43, 482240), (44, 471280), (55, 377024), (64, 324005), (80, 259204), (86, 241120), (88, 235640), (110, 188512), (137, 151360), (160, 129602), (172, 120560), (176, 117820), (215, 96448), (220, 94256), (274, 75680), (320, 64801), (344, 60280), (352, 58910), (430, 48224), (440, 47128), (473, 43840), (548, 37840), (685, 30272), (688, 30140), (704, 29455), (860, 24112), (880, 23564), (946, 21920), (1096, 18920), (1370, 15136), (1376, 15070), (1507, 13760), (1720, 12056), (1760, 11782), (1892, 10960), (2192, 9460), (2365, 8768), (2740, 7568), (2752, 7535), (3014, 6880), (3440, 6028), (3520, 5891), (3784, 5480), (4384, 4730)]