400159870

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{20323}}^1$

素因数の和:20520

約数の個数: 32

約数和(自身を含む): 790197120

約数和(自身を除く): 390037250

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 179, 358, 895, 1790, 1969, 3938, 9845, 19690, 20323, 40646, 101615, 203230, 223553, 447106, 1117765, 2235530, 3637817, 7275634, 18189085, 36378170, 40015987, 80031974, 200079935, 400159870]

約数ペア:

[(1, 400159870), (2, 200079935), (5, 80031974), (10, 40015987), (11, 36378170), (22, 18189085), (55, 7275634), (110, 3637817), (179, 2235530), (358, 1117765), (895, 447106), (1790, 223553), (1969, 203230), (3938, 101615), (9845, 40646), (19690, 20323)]