20239888

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{191}}^1$

素因数の和:415

約数の個数: 40

約数和(自身を含む): 40711680

約数和(自身を除く): 20471792

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 179, 191, 296, 358, 382, 592, 716, 764, 1432, 1528, 2864, 3056, 6623, 7067, 13246, 14134, 26492, 28268, 34189, 52984, 56536, 68378, 105968, 113072, 136756, 273512, 547024, 1264993, 2529986, 5059972, 10119944, 20239888]

約数ペア:

[(1, 20239888), (2, 10119944), (4, 5059972), (8, 2529986), (16, 1264993), (37, 547024), (74, 273512), (148, 136756), (179, 113072), (191, 105968), (296, 68378), (358, 56536), (382, 52984), (592, 34189), (716, 28268), (764, 26492), (1432, 14134), (1528, 13246), (2864, 7067), (3056, 6623)]