678193984

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{409}}^1\times {\mathrm{1993}}^1$

素因数の和:2427

約数の個数: 56

約数和(自身を含む): 1453586120

約数和(自身を除く): 775392136

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 64, 104, 208, 409, 416, 818, 832, 1636, 1993, 3272, 3986, 5317, 6544, 7972, 10634, 13088, 15944, 21268, 25909, 26176, 31888, 42536, 51818, 63776, 85072, 103636, 127552, 170144, 207272, 340288, 414544, 815137, 829088, 1630274, 1658176, 3260548, 6521096, 10596781, 13042192, 21193562, 26084384, 42387124, 52168768, 84774248, 169548496, 339096992, 678193984]

約数ペア:

[(1, 678193984), (2, 339096992), (4, 169548496), (8, 84774248), (13, 52168768), (16, 42387124), (26, 26084384), (32, 21193562), (52, 13042192), (64, 10596781), (104, 6521096), (208, 3260548), (409, 1658176), (416, 1630274), (818, 829088), (832, 815137), (1636, 414544), (1993, 340288), (3272, 207272), (3986, 170144), (5317, 127552), (6544, 103636), (7972, 85072), (10634, 63776), (13088, 51818), (15944, 42536), (21268, 31888), (25909, 26176)]