15125990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{199}}^1\times {\mathrm{691}}^1$

素因数の和:908

約数の個数: 32

約数和(自身を含む): 29894400

約数和(自身を除く): 14768410

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 199, 398, 691, 995, 1382, 1990, 2189, 3455, 4378, 6910, 7601, 10945, 15202, 21890, 38005, 76010, 137509, 275018, 687545, 1375090, 1512599, 3025198, 7562995, 15125990]

約数ペア:

[(1, 15125990), (2, 7562995), (5, 3025198), (10, 1512599), (11, 1375090), (22, 687545), (55, 275018), (110, 137509), (199, 76010), (398, 38005), (691, 21890), (995, 15202), (1382, 10945), (1990, 7601), (2189, 6910), (3455, 4378)]