20760688

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{661}}^1$

素因数の和:833

約数の個数: 40

約数和(自身を含む): 43670816

約数和(自身を除く): 22910128

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 151, 208, 302, 604, 661, 1208, 1322, 1963, 2416, 2644, 3926, 5288, 7852, 8593, 10576, 15704, 17186, 31408, 34372, 68744, 99811, 137488, 199622, 399244, 798488, 1297543, 1596976, 2595086, 5190172, 10380344, 20760688]

約数ペア:

[(1, 20760688), (2, 10380344), (4, 5190172), (8, 2595086), (13, 1596976), (16, 1297543), (26, 798488), (52, 399244), (104, 199622), (151, 137488), (208, 99811), (302, 68744), (604, 34372), (661, 31408), (1208, 17186), (1322, 15704), (1963, 10576), (2416, 8593), (2644, 7852), (3926, 5288)]