20478208

素因数分解:

$2^8\times {\mathrm{167}}^1\times {\mathrm{479}}^1$

素因数の和:662

約数の個数: 36

約数和(自身を含む): 41207040

約数和(自身を除く): 20728832

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 167, 256, 334, 479, 668, 958, 1336, 1916, 2672, 3832, 5344, 7664, 10688, 15328, 21376, 30656, 42752, 61312, 79993, 122624, 159986, 319972, 639944, 1279888, 2559776, 5119552, 10239104, 20478208]

約数ペア:

[(1, 20478208), (2, 10239104), (4, 5119552), (8, 2559776), (16, 1279888), (32, 639944), (64, 319972), (128, 159986), (167, 122624), (256, 79993), (334, 61312), (479, 42752), (668, 30656), (958, 21376), (1336, 15328), (1916, 10688), (2672, 7664), (3832, 5344)]