91006480

素因数分解:

$2^4\times 5^1\times {\mathrm{661}}^1\times {\mathrm{1721}}^1$

素因数の和:2395

約数の個数: 40

約数和(自身を含む): 212033304

約数和(自身を除く): 121026824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 661, 1322, 1721, 2644, 3305, 3442, 5288, 6610, 6884, 8605, 10576, 13220, 13768, 17210, 26440, 27536, 34420, 52880, 68840, 137680, 1137581, 2275162, 4550324, 5687905, 9100648, 11375810, 18201296, 22751620, 45503240, 91006480]

約数ペア:

[(1, 91006480), (2, 45503240), (4, 22751620), (5, 18201296), (8, 11375810), (10, 9100648), (16, 5687905), (20, 4550324), (40, 2275162), (80, 1137581), (661, 137680), (1322, 68840), (1721, 52880), (2644, 34420), (3305, 27536), (3442, 26440), (5288, 17210), (6610, 13768), (6884, 13220), (8605, 10576)]