18104960

素因数分解:

$2^7\times 5^1\times {\mathrm{28289}}^1$

素因数の和:28308

約数の個数: 32

約数和(自身を含む): 43283700

約数和(自身を除く): 25178740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 28289, 56578, 113156, 141445, 226312, 282890, 452624, 565780, 905248, 1131560, 1810496, 2263120, 3620992, 4526240, 9052480, 18104960]

約数ペア:

[(1, 18104960), (2, 9052480), (4, 4526240), (5, 3620992), (8, 2263120), (10, 1810496), (16, 1131560), (20, 905248), (32, 565780), (40, 452624), (64, 282890), (80, 226312), (128, 141445), (160, 113156), (320, 56578), (640, 28289)]