719920448

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{20123}}^1$

素因数の和:20191

約数の個数: 56

約数和(自身を含む): 1574340768

約数和(自身を除く): 854420320

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 43, 52, 64, 86, 104, 172, 208, 344, 416, 559, 688, 832, 1118, 1376, 2236, 2752, 4472, 8944, 17888, 20123, 35776, 40246, 80492, 160984, 261599, 321968, 523198, 643936, 865289, 1046396, 1287872, 1730578, 2092792, 3461156, 4185584, 6922312, 8371168, 11248757, 13844624, 16742336, 22497514, 27689248, 44995028, 55378496, 89990056, 179980112, 359960224, 719920448]

約数ペア:

[(1, 719920448), (2, 359960224), (4, 179980112), (8, 89990056), (13, 55378496), (16, 44995028), (26, 27689248), (32, 22497514), (43, 16742336), (52, 13844624), (64, 11248757), (86, 8371168), (104, 6922312), (172, 4185584), (208, 3461156), (344, 2092792), (416, 1730578), (559, 1287872), (688, 1046396), (832, 865289), (1118, 643936), (1376, 523198), (2236, 321968), (2752, 261599), (4472, 160984), (8944, 80492), (17888, 40246), (20123, 35776)]