28497340

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{3947}}^1$

素因数の和:3994

約数の個数: 36

約数和(自身を含む): 63175896

約数和(自身を除く): 34678556

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 3610, 3947, 7220, 7894, 15788, 19735, 39470, 74993, 78940, 149986, 299972, 374965, 749930, 1424867, 1499860, 2849734, 5699468, 7124335, 14248670, 28497340]

約数ペア:

[(1, 28497340), (2, 14248670), (4, 7124335), (5, 5699468), (10, 2849734), (19, 1499860), (20, 1424867), (38, 749930), (76, 374965), (95, 299972), (190, 149986), (361, 78940), (380, 74993), (722, 39470), (1444, 19735), (1805, 15788), (3610, 7894), (3947, 7220)]