20122908

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^1\times {\mathrm{128993}}^1$

素因数の和:129013

約数の個数: 24

約数和(自身を含む): 50565648

約数和(自身を除く): 30442740

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 128993, 257986, 386979, 515972, 773958, 1547916, 1676909, 3353818, 5030727, 6707636, 10061454, 20122908]

約数ペア:

[(1, 20122908), (2, 10061454), (3, 6707636), (4, 5030727), (6, 3353818), (12, 1676909), (13, 1547916), (26, 773958), (39, 515972), (52, 386979), (78, 257986), (156, 128993)]