20858880

素因数分解:

$2^{11}\times 3^1\times 5^1\times 7^1\times {\mathrm{97}}^1$

素因数の和:134

約数の個数: 192

約数和(自身を含む): 77051520

約数和(自身を除く): 56192640

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, 97, 105, 112, 120, 128, 140, 160, 168, 192, 194, 210, 224, 240, 256, 280, 291, 320, 336, 384, 388, 420, 448, 480, 485, 512, 560, 582, 640, 672, 679, 768, 776, 840, 896, 960, 970, 1024, 1120, 1164, 1280, 1344, 1358, 1455, 1536, 1552, 1680, 1792, 1920, 1940, 2037, 2048, 2240, 2328, 2560, 2688, 2716, 2910, 3072, 3104, 3360, 3395, 3584, 3840, 3880, 4074, 4480, 4656, 5120, 5376, 5432, 5820, 6144, 6208, 6720, 6790, 7168, 7680, 7760, 8148, 8960, 9312, 10185, 10240, 10752, 10864, 11640, 12416, 13440, 13580, 14336, 15360, 15520, 16296, 17920, 18624, 20370, 21504, 21728, 23280, 24832, 26880, 27160, 30720, 31040, 32592, 35840, 37248, 40740, 43008, 43456, 46560, 49664, 53760, 54320, 62080, 65184, 71680, 74496, 81480, 86912, 93120, 99328, 107520, 108640, 124160, 130368, 148992, 162960, 173824, 186240, 198656, 215040, 217280, 248320, 260736, 297984, 325920, 347648, 372480, 434560, 496640, 521472, 595968, 651840, 695296, 744960, 869120, 993280, 1042944, 1303680, 1390592, 1489920, 1738240, 2085888, 2607360, 2979840, 3476480, 4171776, 5214720, 6952960, 10429440, 20858880]

約数ペア:

[(1, 20858880), (2, 10429440), (3, 6952960), (4, 5214720), (5, 4171776), (6, 3476480), (7, 2979840), (8, 2607360), (10, 2085888), (12, 1738240), (14, 1489920), (15, 1390592), (16, 1303680), (20, 1042944), (21, 993280), (24, 869120), (28, 744960), (30, 695296), (32, 651840), (35, 595968), (40, 521472), (42, 496640), (48, 434560), (56, 372480), (60, 347648), (64, 325920), (70, 297984), (80, 260736), (84, 248320), (96, 217280), (97, 215040), (105, 198656), (112, 186240), (120, 173824), (128, 162960), (140, 148992), (160, 130368), (168, 124160), (192, 108640), (194, 107520), (210, 99328), (224, 93120), (240, 86912), (256, 81480), (280, 74496), (291, 71680), (320, 65184), (336, 62080), (384, 54320), (388, 53760), (420, 49664), (448, 46560), (480, 43456), (485, 43008), (512, 40740), (560, 37248), (582, 35840), (640, 32592), (672, 31040), (679, 30720), (768, 27160), (776, 26880), (840, 24832), (896, 23280), (960, 21728), (970, 21504), (1024, 20370), (1120, 18624), (1164, 17920), (1280, 16296), (1344, 15520), (1358, 15360), (1455, 14336), (1536, 13580), (1552, 13440), (1680, 12416), (1792, 11640), (1920, 10864), (1940, 10752), (2037, 10240), (2048, 10185), (2240, 9312), (2328, 8960), (2560, 8148), (2688, 7760), (2716, 7680), (2910, 7168), (3072, 6790), (3104, 6720), (3360, 6208), (3395, 6144), (3584, 5820), (3840, 5432), (3880, 5376), (4074, 5120), (4480, 4656)]