18790544

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{547}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 38732640

約数和(自身を除く): 19942096

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 113, 152, 226, 304, 452, 547, 904, 1094, 1808, 2147, 2188, 4294, 4376, 8588, 8752, 10393, 17176, 20786, 34352, 41572, 61811, 83144, 123622, 166288, 247244, 494488, 988976, 1174409, 2348818, 4697636, 9395272, 18790544]

約数ペア:

[(1, 18790544), (2, 9395272), (4, 4697636), (8, 2348818), (16, 1174409), (19, 988976), (38, 494488), (76, 247244), (113, 166288), (152, 123622), (226, 83144), (304, 61811), (452, 41572), (547, 34352), (904, 20786), (1094, 17176), (1808, 10393), (2147, 8752), (2188, 8588), (4294, 4376)]