20018768

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16249}}^1$

素因数の和:16275

約数の個数: 40

約数和(自身を含む): 48360000

約数和(自身を除く): 28341232

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16249, 32498, 64996, 113743, 129992, 178739, 227486, 259984, 357478, 454972, 714956, 909944, 1251173, 1429912, 1819888, 2502346, 2859824, 5004692, 10009384, 20018768]

約数ペア:

[(1, 20018768), (2, 10009384), (4, 5004692), (7, 2859824), (8, 2502346), (11, 1819888), (14, 1429912), (16, 1251173), (22, 909944), (28, 714956), (44, 454972), (56, 357478), (77, 259984), (88, 227486), (112, 178739), (154, 129992), (176, 113743), (308, 64996), (616, 32498), (1232, 16249)]