20761216

素因数分解:

$2^7\times 7^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:114

約数の個数: 128

約数和(自身を含む): 52876800

約数和(自身を除く): 32115584

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 29, 32, 34, 47, 56, 58, 64, 68, 94, 112, 116, 119, 128, 136, 188, 203, 224, 232, 238, 272, 329, 376, 406, 448, 464, 476, 493, 544, 658, 752, 799, 812, 896, 928, 952, 986, 1088, 1316, 1363, 1504, 1598, 1624, 1856, 1904, 1972, 2176, 2632, 2726, 3008, 3196, 3248, 3451, 3712, 3808, 3944, 5264, 5452, 5593, 6016, 6392, 6496, 6902, 7616, 7888, 9541, 10528, 10904, 11186, 12784, 12992, 13804, 15232, 15776, 19082, 21056, 21808, 22372, 23171, 25568, 25984, 27608, 31552, 38164, 42112, 43616, 44744, 46342, 51136, 55216, 63104, 76328, 87232, 89488, 92684, 102272, 110432, 152656, 162197, 174464, 178976, 185368, 220864, 305312, 324394, 357952, 370736, 441728, 610624, 648788, 715904, 741472, 1221248, 1297576, 1482944, 2595152, 2965888, 5190304, 10380608, 20761216]

約数ペア:

[(1, 20761216), (2, 10380608), (4, 5190304), (7, 2965888), (8, 2595152), (14, 1482944), (16, 1297576), (17, 1221248), (28, 741472), (29, 715904), (32, 648788), (34, 610624), (47, 441728), (56, 370736), (58, 357952), (64, 324394), (68, 305312), (94, 220864), (112, 185368), (116, 178976), (119, 174464), (128, 162197), (136, 152656), (188, 110432), (203, 102272), (224, 92684), (232, 89488), (238, 87232), (272, 76328), (329, 63104), (376, 55216), (406, 51136), (448, 46342), (464, 44744), (476, 43616), (493, 42112), (544, 38164), (658, 31552), (752, 27608), (799, 25984), (812, 25568), (896, 23171), (928, 22372), (952, 21808), (986, 21056), (1088, 19082), (1316, 15776), (1363, 15232), (1504, 13804), (1598, 12992), (1624, 12784), (1856, 11186), (1904, 10904), (1972, 10528), (2176, 9541), (2632, 7888), (2726, 7616), (3008, 6902), (3196, 6496), (3248, 6392), (3451, 6016), (3712, 5593), (3808, 5452), (3944, 5264)]