39870980

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{7757}}^1$

素因数の和:8023

約数の個数: 24

約数和(自身を含む): 84065688

約数和(自身を除く): 44194708

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 7757, 15514, 31028, 38785, 77570, 155140, 1993549, 3987098, 7974196, 9967745, 19935490, 39870980]

約数ペア:

[(1, 39870980), (2, 19935490), (4, 9967745), (5, 7974196), (10, 3987098), (20, 1993549), (257, 155140), (514, 77570), (1028, 38785), (1285, 31028), (2570, 15514), (5140, 7757)]