20188756

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 72

約数和(自身を含む): 44593920

約数和(自身を除く): 24405164

約数列:

[1, 2, 4, 7, 14, 23, 28, 29, 46, 47, 58, 92, 94, 116, 161, 188, 203, 322, 329, 406, 529, 644, 658, 667, 812, 1058, 1081, 1316, 1334, 1363, 2116, 2162, 2668, 2726, 3703, 4324, 4669, 5452, 7406, 7567, 9338, 9541, 14812, 15134, 15341, 18676, 19082, 24863, 30268, 30682, 31349, 38164, 49726, 61364, 62698, 99452, 107387, 125396, 174041, 214774, 219443, 348082, 429548, 438886, 696164, 721027, 877772, 1442054, 2884108, 5047189, 10094378, 20188756]

約数ペア:

[(1, 20188756), (2, 10094378), (4, 5047189), (7, 2884108), (14, 1442054), (23, 877772), (28, 721027), (29, 696164), (46, 438886), (47, 429548), (58, 348082), (92, 219443), (94, 214774), (116, 174041), (161, 125396), (188, 107387), (203, 99452), (322, 62698), (329, 61364), (406, 49726), (529, 38164), (644, 31349), (658, 30682), (667, 30268), (812, 24863), (1058, 19082), (1081, 18676), (1316, 15341), (1334, 15134), (1363, 14812), (2116, 9541), (2162, 9338), (2668, 7567), (2726, 7406), (3703, 5452), (4324, 4669)]