20143448

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:396

約数の個数: 48

約数和(自身を含む): 41899680

約数和(自身を除く): 21756232

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 169, 188, 317, 338, 376, 611, 634, 676, 1222, 1268, 1352, 2444, 2536, 4121, 4888, 7943, 8242, 14899, 15886, 16484, 29798, 31772, 32968, 53573, 59596, 63544, 107146, 119192, 193687, 214292, 387374, 428584, 774748, 1549496, 2517931, 5035862, 10071724, 20143448]

約数ペア:

[(1, 20143448), (2, 10071724), (4, 5035862), (8, 2517931), (13, 1549496), (26, 774748), (47, 428584), (52, 387374), (94, 214292), (104, 193687), (169, 119192), (188, 107146), (317, 63544), (338, 59596), (376, 53573), (611, 32968), (634, 31772), (676, 29798), (1222, 16484), (1268, 15886), (1352, 14899), (2444, 8242), (2536, 7943), (4121, 4888)]