2021781520

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{2297479}}^1$

素因数の和:2297503

約数の個数: 40

約数和(自身を含む): 5127975360

約数和(自身を除く): 3106193840

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 2297479, 4594958, 9189916, 11487395, 18379832, 22974790, 25272269, 36759664, 45949580, 50544538, 91899160, 101089076, 126361345, 183798320, 202178152, 252722690, 404356304, 505445380, 1010890760, 2021781520]

約数ペア:

[(1, 2021781520), (2, 1010890760), (4, 505445380), (5, 404356304), (8, 252722690), (10, 202178152), (11, 183798320), (16, 126361345), (20, 101089076), (22, 91899160), (40, 50544538), (44, 45949580), (55, 36759664), (80, 25272269), (88, 22974790), (110, 18379832), (176, 11487395), (220, 9189916), (440, 4594958), (880, 2297479)]