40565438

素因数分解:

$2^1\times {\mathrm{101}}^1\times {\mathrm{409}}^1\times {\mathrm{491}}^1$

素因数の和:1003

約数の個数: 16

約数和(自身を含む): 61726320

約数和(自身を除く): 21160882

約数列:

[1, 2, 101, 202, 409, 491, 818, 982, 41309, 49591, 82618, 99182, 200819, 401638, 20282719, 40565438]

約数ペア:

[(1, 40565438), (2, 20282719), (101, 401638), (202, 200819), (409, 99182), (491, 82618), (818, 49591), (982, 41309)]