20702172

素因数分解:

$2^2\times 3^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1$

素因数の和:187

約数の個数: 96

約数和(自身を含む): 54835200

約数和(自身を除く): 34133028

約数列:

[1, 2, 3, 4, 6, 12, 19, 29, 31, 38, 57, 58, 62, 76, 87, 93, 101, 114, 116, 124, 174, 186, 202, 228, 303, 348, 372, 404, 551, 589, 606, 899, 1102, 1178, 1212, 1653, 1767, 1798, 1919, 2204, 2356, 2697, 2929, 3131, 3306, 3534, 3596, 3838, 5394, 5757, 5858, 6262, 6612, 7068, 7676, 8787, 9393, 10788, 11514, 11716, 12524, 17081, 17574, 18786, 23028, 34162, 35148, 37572, 51243, 55651, 59489, 68324, 90799, 102486, 111302, 118978, 166953, 178467, 181598, 204972, 222604, 237956, 272397, 333906, 356934, 363196, 544794, 667812, 713868, 1089588, 1725181, 3450362, 5175543, 6900724, 10351086, 20702172]

約数ペア:

[(1, 20702172), (2, 10351086), (3, 6900724), (4, 5175543), (6, 3450362), (12, 1725181), (19, 1089588), (29, 713868), (31, 667812), (38, 544794), (57, 363196), (58, 356934), (62, 333906), (76, 272397), (87, 237956), (93, 222604), (101, 204972), (114, 181598), (116, 178467), (124, 166953), (174, 118978), (186, 111302), (202, 102486), (228, 90799), (303, 68324), (348, 59489), (372, 55651), (404, 51243), (551, 37572), (589, 35148), (606, 34162), (899, 23028), (1102, 18786), (1178, 17574), (1212, 17081), (1653, 12524), (1767, 11716), (1798, 11514), (1919, 10788), (2204, 9393), (2356, 8787), (2697, 7676), (2929, 7068), (3131, 6612), (3306, 6262), (3534, 5858), (3596, 5757), (3838, 5394)]