66789905

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{181}}^1\times {\mathrm{811}}^1$

素因数の和:1017

約数の個数: 32

約数和(自身を含む): 99310848

約数和(自身を除く): 32520943

約数列:

[1, 5, 7, 13, 35, 65, 91, 181, 455, 811, 905, 1267, 2353, 4055, 5677, 6335, 10543, 11765, 16471, 28385, 52715, 73801, 82355, 146791, 369005, 733955, 1027537, 1908283, 5137685, 9541415, 13357981, 66789905]

約数ペア:

[(1, 66789905), (5, 13357981), (7, 9541415), (13, 5137685), (35, 1908283), (65, 1027537), (91, 733955), (181, 369005), (455, 146791), (811, 82355), (905, 73801), (1267, 52715), (2353, 28385), (4055, 16471), (5677, 11765), (6335, 10543)]