20880156

素因数分解:

$2^2\times 3^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{499}}^1$

素因数の和:834

約数の個数: 48

約数和(自身を含む): 53424000

約数和(自身を除く): 32543844

約数列:

[1, 2, 3, 4, 6, 11, 12, 22, 33, 44, 66, 132, 317, 499, 634, 951, 998, 1268, 1497, 1902, 1996, 2994, 3487, 3804, 5489, 5988, 6974, 10461, 10978, 13948, 16467, 20922, 21956, 32934, 41844, 65868, 158183, 316366, 474549, 632732, 949098, 1740013, 1898196, 3480026, 5220039, 6960052, 10440078, 20880156]

約数ペア:

[(1, 20880156), (2, 10440078), (3, 6960052), (4, 5220039), (6, 3480026), (11, 1898196), (12, 1740013), (22, 949098), (33, 632732), (44, 474549), (66, 316366), (132, 158183), (317, 65868), (499, 41844), (634, 32934), (951, 21956), (998, 20922), (1268, 16467), (1497, 13948), (1902, 10978), (1996, 10461), (2994, 6974), (3487, 5988), (3804, 5489)]