87380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{257}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 195048

約数和(自身を除く): 107668

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 257, 340, 514, 1028, 1285, 2570, 4369, 5140, 8738, 17476, 21845, 43690, 87380]

約数ペア:

[(1, 87380), (2, 43690), (4, 21845), (5, 17476), (10, 8738), (17, 5140), (20, 4369), (34, 2570), (68, 1285), (85, 1028), (170, 514), (257, 340)]