1388478256

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1\times {\mathrm{677}}^1$

素因数の和:1010

約数の個数: 80

約数和(自身を含む): 3018521088

約数和(自身を除く): 1630042832

約数列:

[1, 2, 4, 8, 11, 16, 22, 43, 44, 86, 88, 172, 176, 271, 344, 473, 542, 677, 688, 946, 1084, 1354, 1892, 2168, 2708, 2981, 3784, 4336, 5416, 5962, 7447, 7568, 10832, 11653, 11924, 14894, 23306, 23848, 29111, 29788, 46612, 47696, 58222, 59576, 93224, 116444, 119152, 128183, 183467, 186448, 232888, 256366, 320221, 366934, 465776, 512732, 640442, 733868, 1025464, 1280884, 1467736, 2018137, 2050928, 2561768, 2935472, 4036274, 5123536, 7889081, 8072548, 15778162, 16145096, 31556324, 32290192, 63112648, 86779891, 126225296, 173559782, 347119564, 694239128, 1388478256]

約数ペア:

[(1, 1388478256), (2, 694239128), (4, 347119564), (8, 173559782), (11, 126225296), (16, 86779891), (22, 63112648), (43, 32290192), (44, 31556324), (86, 16145096), (88, 15778162), (172, 8072548), (176, 7889081), (271, 5123536), (344, 4036274), (473, 2935472), (542, 2561768), (677, 2050928), (688, 2018137), (946, 1467736), (1084, 1280884), (1354, 1025464), (1892, 733868), (2168, 640442), (2708, 512732), (2981, 465776), (3784, 366934), (4336, 320221), (5416, 256366), (5962, 232888), (7447, 186448), (7568, 183467), (10832, 128183), (11653, 119152), (11924, 116444), (14894, 93224), (23306, 59576), (23848, 58222), (29111, 47696), (29788, 46612)]