40666280

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 94832640

約数和(自身を除く): 54166360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 97, 188, 194, 223, 235, 376, 388, 446, 470, 485, 776, 892, 940, 970, 1115, 1784, 1880, 1940, 2230, 3880, 4460, 4559, 8920, 9118, 10481, 18236, 20962, 21631, 22795, 36472, 41924, 43262, 45590, 52405, 83848, 86524, 91180, 104810, 108155, 173048, 182360, 209620, 216310, 419240, 432620, 865240, 1016657, 2033314, 4066628, 5083285, 8133256, 10166570, 20333140, 40666280]

約数ペア:

[(1, 40666280), (2, 20333140), (4, 10166570), (5, 8133256), (8, 5083285), (10, 4066628), (20, 2033314), (40, 1016657), (47, 865240), (94, 432620), (97, 419240), (188, 216310), (194, 209620), (223, 182360), (235, 173048), (376, 108155), (388, 104810), (446, 91180), (470, 86524), (485, 83848), (776, 52405), (892, 45590), (940, 43262), (970, 41924), (1115, 36472), (1784, 22795), (1880, 21631), (1940, 20962), (2230, 18236), (3880, 10481), (4460, 9118), (4559, 8920)]