40808570920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{78478021}}^1$

素因数の和:78478045

約数の個数: 32

約数和(自身を含む): 98882307720

約数和(自身を除く): 58073736800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 78478021, 156956042, 313912084, 392390105, 627824168, 784780210, 1020214273, 1569560420, 2040428546, 3139120840, 4080857092, 5101071365, 8161714184, 10202142730, 20404285460, 40808570920]

約数ペア:

[(1, 40808570920), (2, 20404285460), (4, 10202142730), (5, 8161714184), (8, 5101071365), (10, 4080857092), (13, 3139120840), (20, 2040428546), (26, 1569560420), (40, 1020214273), (52, 784780210), (65, 627824168), (104, 392390105), (130, 313912084), (260, 156956042), (520, 78478021)]