27791980

素因数分解:

$2^2\times 5^1\times {\mathrm{257}}^1\times {\mathrm{5407}}^1$

素因数の和:5673

約数の個数: 24

約数和(自身を含む): 58601088

約数和(自身を除く): 30809108

約数列:

[1, 2, 4, 5, 10, 20, 257, 514, 1028, 1285, 2570, 5140, 5407, 10814, 21628, 27035, 54070, 108140, 1389599, 2779198, 5558396, 6947995, 13895990, 27791980]

約数ペア:

[(1, 27791980), (2, 13895990), (4, 6947995), (5, 5558396), (10, 2779198), (20, 1389599), (257, 108140), (514, 54070), (1028, 27035), (1285, 21628), (2570, 10814), (5140, 5407)]