20655748

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1$

素因数の和:372

約数の個数: 48

約数和(自身を含む): 40932864

約数和(自身を除く): 20277116

約数列:

[1, 2, 4, 17, 23, 34, 46, 47, 68, 92, 94, 188, 281, 391, 562, 782, 799, 1081, 1124, 1564, 1598, 2162, 3196, 4324, 4777, 6463, 9554, 12926, 13207, 18377, 19108, 25852, 26414, 36754, 52828, 73508, 109871, 219742, 224519, 303761, 439484, 449038, 607522, 898076, 1215044, 5163937, 10327874, 20655748]

約数ペア:

[(1, 20655748), (2, 10327874), (4, 5163937), (17, 1215044), (23, 898076), (34, 607522), (46, 449038), (47, 439484), (68, 303761), (92, 224519), (94, 219742), (188, 109871), (281, 73508), (391, 52828), (562, 36754), (782, 26414), (799, 25852), (1081, 19108), (1124, 18377), (1564, 13207), (1598, 12926), (2162, 9554), (3196, 6463), (4324, 4777)]