28395760

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{4493}}^1$

素因数の和:4585

約数の個数: 40

約数和(自身を含む): 66870720

約数和(自身を除く): 38474960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 632, 790, 1264, 1580, 3160, 4493, 6320, 8986, 17972, 22465, 35944, 44930, 71888, 89860, 179720, 354947, 359440, 709894, 1419788, 1774735, 2839576, 3549470, 5679152, 7098940, 14197880, 28395760]

約数ペア:

[(1, 28395760), (2, 14197880), (4, 7098940), (5, 5679152), (8, 3549470), (10, 2839576), (16, 1774735), (20, 1419788), (40, 709894), (79, 359440), (80, 354947), (158, 179720), (316, 89860), (395, 71888), (632, 44930), (790, 35944), (1264, 22465), (1580, 17972), (3160, 8986), (4493, 6320)]