40262690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{309713}}^1$

素因数の和:309733

約数の個数: 16

約数和(自身を含む): 78047928

約数和(自身を除く): 37785238

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 309713, 619426, 1548565, 3097130, 4026269, 8052538, 20131345, 40262690]

約数ペア:

[(1, 40262690), (2, 20131345), (5, 8052538), (10, 4026269), (13, 3097130), (26, 1548565), (65, 619426), (130, 309713)]