20986256

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1459}}^1$

素因数の和:1527

約数の個数: 40

約数和(自身を含む): 43449600

約数和(自身を除く): 22463344

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 116, 124, 232, 248, 464, 496, 899, 1459, 1798, 2918, 3596, 5836, 7192, 11672, 14384, 23344, 42311, 45229, 84622, 90458, 169244, 180916, 338488, 361832, 676976, 723664, 1311641, 2623282, 5246564, 10493128, 20986256]

約数ペア:

[(1, 20986256), (2, 10493128), (4, 5246564), (8, 2623282), (16, 1311641), (29, 723664), (31, 676976), (58, 361832), (62, 338488), (116, 180916), (124, 169244), (232, 90458), (248, 84622), (464, 45229), (496, 42311), (899, 23344), (1459, 14384), (1798, 11672), (2918, 7192), (3596, 5836)]