55205680

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{16831}}^1$

素因数の和:16885

約数の個数: 40

約数和(自身を含む): 131491584

約数和(自身を除く): 76285904

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 16831, 33662, 67324, 84155, 134648, 168310, 269296, 336620, 673240, 690071, 1346480, 1380142, 2760284, 3450355, 5520568, 6900710, 11041136, 13801420, 27602840, 55205680]

約数ペア:

[(1, 55205680), (2, 27602840), (4, 13801420), (5, 11041136), (8, 6900710), (10, 5520568), (16, 3450355), (20, 2760284), (40, 1380142), (41, 1346480), (80, 690071), (82, 673240), (164, 336620), (205, 269296), (328, 168310), (410, 134648), (656, 84155), (820, 67324), (1640, 33662), (3280, 16831)]