80990260

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{1721}}^1$

素因数の和:1924

約数の個数: 48

約数和(自身を含む): 184281552

約数和(自身を除く): 103291292

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 181, 260, 362, 724, 905, 1721, 1810, 2353, 3442, 3620, 4706, 6884, 8605, 9412, 11765, 17210, 22373, 23530, 34420, 44746, 47060, 89492, 111865, 223730, 311501, 447460, 623002, 1246004, 1557505, 3115010, 4049513, 6230020, 8099026, 16198052, 20247565, 40495130, 80990260]

約数ペア:

[(1, 80990260), (2, 40495130), (4, 20247565), (5, 16198052), (10, 8099026), (13, 6230020), (20, 4049513), (26, 3115010), (52, 1557505), (65, 1246004), (130, 623002), (181, 447460), (260, 311501), (362, 223730), (724, 111865), (905, 89492), (1721, 47060), (1810, 44746), (2353, 34420), (3442, 23530), (3620, 22373), (4706, 17210), (6884, 11765), (8605, 9412)]