19564064

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{359}}^1$

素因数の和:513

約数の個数: 48

約数和(自身を含む): 41912640

約数和(自身を除く): 22348576

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 131, 208, 262, 359, 416, 524, 718, 1048, 1436, 1703, 2096, 2872, 3406, 4192, 4667, 5744, 6812, 9334, 11488, 13624, 18668, 27248, 37336, 47029, 54496, 74672, 94058, 149344, 188116, 376232, 611377, 752464, 1222754, 1504928, 2445508, 4891016, 9782032, 19564064]

約数ペア:

[(1, 19564064), (2, 9782032), (4, 4891016), (8, 2445508), (13, 1504928), (16, 1222754), (26, 752464), (32, 611377), (52, 376232), (104, 188116), (131, 149344), (208, 94058), (262, 74672), (359, 54496), (416, 47029), (524, 37336), (718, 27248), (1048, 18668), (1436, 13624), (1703, 11488), (2096, 9334), (2872, 6812), (3406, 5744), (4192, 4667)]