209421520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{33997}}^1$

素因数の和:34028

約数の個数: 80

約数和(自身を含む): 607068288

約数和(自身を除く): 397646768

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 16, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 80, 88, 110, 112, 140, 154, 176, 220, 280, 308, 385, 440, 560, 616, 770, 880, 1232, 1540, 3080, 6160, 33997, 67994, 135988, 169985, 237979, 271976, 339970, 373967, 475958, 543952, 679940, 747934, 951916, 1189895, 1359880, 1495868, 1869835, 1903832, 2379790, 2617769, 2719760, 2991736, 3739670, 3807664, 4759580, 5235538, 5983472, 7479340, 9519160, 10471076, 13088845, 14958680, 19038320, 20942152, 26177690, 29917360, 41884304, 52355380, 104710760, 209421520]

約数ペア:

[(1, 209421520), (2, 104710760), (4, 52355380), (5, 41884304), (7, 29917360), (8, 26177690), (10, 20942152), (11, 19038320), (14, 14958680), (16, 13088845), (20, 10471076), (22, 9519160), (28, 7479340), (35, 5983472), (40, 5235538), (44, 4759580), (55, 3807664), (56, 3739670), (70, 2991736), (77, 2719760), (80, 2617769), (88, 2379790), (110, 1903832), (112, 1869835), (140, 1495868), (154, 1359880), (176, 1189895), (220, 951916), (280, 747934), (308, 679940), (385, 543952), (440, 475958), (560, 373967), (616, 339970), (770, 271976), (880, 237979), (1232, 169985), (1540, 135988), (3080, 67994), (6160, 33997)]