19447760

素因数分解:

$2^4\times 5^1\times {\mathrm{283}}^1\times {\mathrm{859}}^1$

素因数の和:1155

約数の個数: 40

約数和(自身を含む): 45428640

約数和(自身を除く): 25980880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 283, 566, 859, 1132, 1415, 1718, 2264, 2830, 3436, 4295, 4528, 5660, 6872, 8590, 11320, 13744, 17180, 22640, 34360, 68720, 243097, 486194, 972388, 1215485, 1944776, 2430970, 3889552, 4861940, 9723880, 19447760]

約数ペア:

[(1, 19447760), (2, 9723880), (4, 4861940), (5, 3889552), (8, 2430970), (10, 1944776), (16, 1215485), (20, 972388), (40, 486194), (80, 243097), (283, 68720), (566, 34360), (859, 22640), (1132, 17180), (1415, 13744), (1718, 11320), (2264, 8590), (2830, 6872), (3436, 5660), (4295, 4528)]