20280976

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{401}}^1$

素因数の和:547

約数の個数: 40

約数和(自身を含む): 41124600

約数和(自身を除く): 20843624

約数列:

[1, 2, 4, 8, 16, 29, 58, 109, 116, 218, 232, 401, 436, 464, 802, 872, 1604, 1744, 3161, 3208, 6322, 6416, 11629, 12644, 23258, 25288, 43709, 46516, 50576, 87418, 93032, 174836, 186064, 349672, 699344, 1267561, 2535122, 5070244, 10140488, 20280976]

約数ペア:

[(1, 20280976), (2, 10140488), (4, 5070244), (8, 2535122), (16, 1267561), (29, 699344), (58, 349672), (109, 186064), (116, 174836), (218, 93032), (232, 87418), (401, 50576), (436, 46516), (464, 43709), (802, 25288), (872, 23258), (1604, 12644), (1744, 11629), (3161, 6416), (3208, 6322)]