42969940

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12713}}^1$

素因数の和:12748

約数の個数: 36

約数和(自身を含む): 97719804

約数和(自身を除く): 54749864

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 169, 260, 338, 676, 845, 1690, 3380, 12713, 25426, 50852, 63565, 127130, 165269, 254260, 330538, 661076, 826345, 1652690, 2148497, 3305380, 4296994, 8593988, 10742485, 21484970, 42969940]

約数ペア:

[(1, 42969940), (2, 21484970), (4, 10742485), (5, 8593988), (10, 4296994), (13, 3305380), (20, 2148497), (26, 1652690), (52, 826345), (65, 661076), (130, 330538), (169, 254260), (260, 165269), (338, 127130), (676, 63565), (845, 50852), (1690, 25426), (3380, 12713)]