20067536

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{709}}^1$

素因数の和:807

約数の個数: 40

約数和(自身を含む): 40938600

約数和(自身を除く): 20871064

約数列:

[1, 2, 4, 8, 16, 29, 58, 61, 116, 122, 232, 244, 464, 488, 709, 976, 1418, 1769, 2836, 3538, 5672, 7076, 11344, 14152, 20561, 28304, 41122, 43249, 82244, 86498, 164488, 172996, 328976, 345992, 691984, 1254221, 2508442, 5016884, 10033768, 20067536]

約数ペア:

[(1, 20067536), (2, 10033768), (4, 5016884), (8, 2508442), (16, 1254221), (29, 691984), (58, 345992), (61, 328976), (116, 172996), (122, 164488), (232, 86498), (244, 82244), (464, 43249), (488, 41122), (709, 28304), (976, 20561), (1418, 14152), (1769, 11344), (2836, 7076), (3538, 5672)]