20918270

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{103}}^1\times {\mathrm{883}}^1$

素因数の和:1016

約数の個数: 32

約数和(自身を含む): 39716352

約数和(自身を除く): 18798082

約数列:

[1, 2, 5, 10, 23, 46, 103, 115, 206, 230, 515, 883, 1030, 1766, 2369, 4415, 4738, 8830, 11845, 20309, 23690, 40618, 90949, 101545, 181898, 203090, 454745, 909490, 2091827, 4183654, 10459135, 20918270]

約数ペア:

[(1, 20918270), (2, 10459135), (5, 4183654), (10, 2091827), (23, 909490), (46, 454745), (103, 203090), (115, 181898), (206, 101545), (230, 90949), (515, 40618), (883, 23690), (1030, 20309), (1766, 11845), (2369, 8830), (4415, 4738)]