20392168

素因数分解:

$2^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{307}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 42245280

約数和(自身を除く): 21853112

約数列:

[1, 2, 4, 8, 19, 23, 38, 46, 76, 92, 152, 184, 307, 361, 437, 614, 722, 874, 1228, 1444, 1748, 2456, 2888, 3496, 5833, 7061, 8303, 11666, 14122, 16606, 23332, 28244, 33212, 46664, 56488, 66424, 110827, 134159, 221654, 268318, 443308, 536636, 886616, 1073272, 2549021, 5098042, 10196084, 20392168]

約数ペア:

[(1, 20392168), (2, 10196084), (4, 5098042), (8, 2549021), (19, 1073272), (23, 886616), (38, 536636), (46, 443308), (76, 268318), (92, 221654), (152, 134159), (184, 110827), (307, 66424), (361, 56488), (437, 46664), (614, 33212), (722, 28244), (874, 23332), (1228, 16606), (1444, 14122), (1748, 11666), (2456, 8303), (2888, 7061), (3496, 5833)]