81123904

素因数分解:

$2^6\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:551

約数の個数: 56

約数和(自身を含む): 168478200

約数和(自身を除く): 87354296

約数列:

[1, 2, 4, 8, 16, 29, 32, 58, 64, 109, 116, 218, 232, 401, 436, 464, 802, 872, 928, 1604, 1744, 1856, 3161, 3208, 3488, 6322, 6416, 6976, 11629, 12644, 12832, 23258, 25288, 25664, 43709, 46516, 50576, 87418, 93032, 101152, 174836, 186064, 202304, 349672, 372128, 699344, 744256, 1267561, 1398688, 2535122, 2797376, 5070244, 10140488, 20280976, 40561952, 81123904]

約数ペア:

[(1, 81123904), (2, 40561952), (4, 20280976), (8, 10140488), (16, 5070244), (29, 2797376), (32, 2535122), (58, 1398688), (64, 1267561), (109, 744256), (116, 699344), (218, 372128), (232, 349672), (401, 202304), (436, 186064), (464, 174836), (802, 101152), (872, 93032), (928, 87418), (1604, 50576), (1744, 46516), (1856, 43709), (3161, 25664), (3208, 25288), (3488, 23258), (6322, 12832), (6416, 12644), (6976, 11629)]