12871300

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{9901}}^1$

素因数の和:9928

約数の個数: 36

約数和(自身を含む): 30082276

約数和(自身を除く): 17210976

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 9901, 19802, 39604, 49505, 99010, 128713, 198020, 247525, 257426, 495050, 514852, 643565, 990100, 1287130, 2574260, 3217825, 6435650, 12871300]

約数ペア:

[(1, 12871300), (2, 6435650), (4, 3217825), (5, 2574260), (10, 1287130), (13, 990100), (20, 643565), (25, 514852), (26, 495050), (50, 257426), (52, 247525), (65, 198020), (100, 128713), (130, 99010), (260, 49505), (325, 39604), (650, 19802), (1300, 9901)]