28181868

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{1493}}^1$

素因数の和:1535

約数の個数: 72

約数和(自身を含む): 77891184

約数和(自身を除く): 49709316

約数列:

[1, 2, 3, 4, 6, 11, 12, 13, 22, 26, 33, 39, 44, 52, 66, 78, 121, 132, 143, 156, 242, 286, 363, 429, 484, 572, 726, 858, 1452, 1493, 1573, 1716, 2986, 3146, 4479, 4719, 5972, 6292, 8958, 9438, 16423, 17916, 18876, 19409, 32846, 38818, 49269, 58227, 65692, 77636, 98538, 116454, 180653, 197076, 213499, 232908, 361306, 426998, 541959, 640497, 722612, 853996, 1083918, 1280994, 2167836, 2348489, 2561988, 4696978, 7045467, 9393956, 14090934, 28181868]

約数ペア:

[(1, 28181868), (2, 14090934), (3, 9393956), (4, 7045467), (6, 4696978), (11, 2561988), (12, 2348489), (13, 2167836), (22, 1280994), (26, 1083918), (33, 853996), (39, 722612), (44, 640497), (52, 541959), (66, 426998), (78, 361306), (121, 232908), (132, 213499), (143, 197076), (156, 180653), (242, 116454), (286, 98538), (363, 77636), (429, 65692), (484, 58227), (572, 49269), (726, 38818), (858, 32846), (1452, 19409), (1493, 18876), (1573, 17916), (1716, 16423), (2986, 9438), (3146, 8958), (4479, 6292), (4719, 5972)]