1688648

素因数分解:

$2^3\times {\mathrm{13}}^2\times {\mathrm{1249}}^1$

素因数の和:1281

約数の個数: 24

約数和(自身を含む): 3431250

約数和(自身を除く): 1742602

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 169, 338, 676, 1249, 1352, 2498, 4996, 9992, 16237, 32474, 64948, 129896, 211081, 422162, 844324, 1688648]

約数ペア:

[(1, 1688648), (2, 844324), (4, 422162), (8, 211081), (13, 129896), (26, 64948), (52, 32474), (104, 16237), (169, 9992), (338, 4996), (676, 2498), (1249, 1352)]