31708456

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{499}}^1$

素因数の和:578

約数の個数: 48

約数和(自身を含む): 65880000

約数和(自身を除く): 34171544

約数列:

[1, 2, 4, 8, 13, 26, 47, 52, 94, 104, 169, 188, 338, 376, 499, 611, 676, 998, 1222, 1352, 1996, 2444, 3992, 4888, 6487, 7943, 12974, 15886, 23453, 25948, 31772, 46906, 51896, 63544, 84331, 93812, 168662, 187624, 304889, 337324, 609778, 674648, 1219556, 2439112, 3963557, 7927114, 15854228, 31708456]

約数ペア:

[(1, 31708456), (2, 15854228), (4, 7927114), (8, 3963557), (13, 2439112), (26, 1219556), (47, 674648), (52, 609778), (94, 337324), (104, 304889), (169, 187624), (188, 168662), (338, 93812), (376, 84331), (499, 63544), (611, 51896), (676, 46906), (998, 31772), (1222, 25948), (1352, 23453), (1996, 15886), (2444, 12974), (3992, 7943), (4888, 6487)]