20803904

素因数分解:

$2^6\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1019}}^1$

素因数の和:1071

約数の個数: 56

約数和(自身を含む): 46634400

約数和(自身を除く): 25830496

約数列:

[1, 2, 4, 8, 11, 16, 22, 29, 32, 44, 58, 64, 88, 116, 176, 232, 319, 352, 464, 638, 704, 928, 1019, 1276, 1856, 2038, 2552, 4076, 5104, 8152, 10208, 11209, 16304, 20416, 22418, 29551, 32608, 44836, 59102, 65216, 89672, 118204, 179344, 236408, 325061, 358688, 472816, 650122, 717376, 945632, 1300244, 1891264, 2600488, 5200976, 10401952, 20803904]

約数ペア:

[(1, 20803904), (2, 10401952), (4, 5200976), (8, 2600488), (11, 1891264), (16, 1300244), (22, 945632), (29, 717376), (32, 650122), (44, 472816), (58, 358688), (64, 325061), (88, 236408), (116, 179344), (176, 118204), (232, 89672), (319, 65216), (352, 59102), (464, 44836), (638, 32608), (704, 29551), (928, 22418), (1019, 20416), (1276, 16304), (1856, 11209), (2038, 10208), (2552, 8152), (4076, 5104)]