1638688

素因数分解:

$2^5\times {\mathrm{41}}^1\times {\mathrm{1249}}^1$

素因数の和:1300

約数の個数: 24

約数和(自身を含む): 3307500

約数和(自身を除く): 1668812

約数列:

[1, 2, 4, 8, 16, 32, 41, 82, 164, 328, 656, 1249, 1312, 2498, 4996, 9992, 19984, 39968, 51209, 102418, 204836, 409672, 819344, 1638688]

約数ペア:

[(1, 1638688), (2, 819344), (4, 409672), (8, 204836), (16, 102418), (32, 51209), (41, 39968), (82, 19984), (164, 9992), (328, 4996), (656, 2498), (1249, 1312)]