17938180

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{68993}}^1$

素因数の和:69015

約数の個数: 24

約数和(自身を含む): 40568472

約数和(自身を除く): 22630292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 68993, 137986, 275972, 344965, 689930, 896909, 1379860, 1793818, 3587636, 4484545, 8969090, 17938180]

約数ペア:

[(1, 17938180), (2, 8969090), (4, 4484545), (5, 3587636), (10, 1793818), (13, 1379860), (20, 896909), (26, 689930), (52, 344965), (65, 275972), (130, 137986), (260, 68993)]