20660416

素因数分解:

$2^6\times 7^1\times {\mathrm{107}}^1\times {\mathrm{431}}^1$

素因数の和:557

約数の個数: 56

約数和(自身を含む): 47402496

約数和(自身を除く): 26742080

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 107, 112, 214, 224, 428, 431, 448, 749, 856, 862, 1498, 1712, 1724, 2996, 3017, 3424, 3448, 5992, 6034, 6848, 6896, 11984, 12068, 13792, 23968, 24136, 27584, 46117, 47936, 48272, 92234, 96544, 184468, 193088, 322819, 368936, 645638, 737872, 1291276, 1475744, 2582552, 2951488, 5165104, 10330208, 20660416]

約数ペア:

[(1, 20660416), (2, 10330208), (4, 5165104), (7, 2951488), (8, 2582552), (14, 1475744), (16, 1291276), (28, 737872), (32, 645638), (56, 368936), (64, 322819), (107, 193088), (112, 184468), (214, 96544), (224, 92234), (428, 48272), (431, 47936), (448, 46117), (749, 27584), (856, 24136), (862, 23968), (1498, 13792), (1712, 12068), (1724, 11984), (2996, 6896), (3017, 6848), (3424, 6034), (3448, 5992)]