20928952

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1\times {\mathrm{139}}^1$

素因数の和:244

約数の個数: 64

約数和(自身を含む): 45360000

約数和(自身を除く): 24431048

約数列:

[1, 2, 4, 8, 11, 22, 29, 44, 58, 59, 88, 116, 118, 139, 232, 236, 278, 319, 472, 556, 638, 649, 1112, 1276, 1298, 1529, 1711, 2552, 2596, 3058, 3422, 4031, 5192, 6116, 6844, 8062, 8201, 12232, 13688, 16124, 16402, 18821, 32248, 32804, 37642, 44341, 65608, 75284, 88682, 90211, 150568, 177364, 180422, 237829, 354728, 360844, 475658, 721688, 951316, 1902632, 2616119, 5232238, 10464476, 20928952]

約数ペア:

[(1, 20928952), (2, 10464476), (4, 5232238), (8, 2616119), (11, 1902632), (22, 951316), (29, 721688), (44, 475658), (58, 360844), (59, 354728), (88, 237829), (116, 180422), (118, 177364), (139, 150568), (232, 90211), (236, 88682), (278, 75284), (319, 65608), (472, 44341), (556, 37642), (638, 32804), (649, 32248), (1112, 18821), (1276, 16402), (1298, 16124), (1529, 13688), (1711, 12232), (2552, 8201), (2596, 8062), (3058, 6844), (3422, 6116), (4031, 5192)]