4242880

素因数分解:

$2^6\times 5^1\times {\mathrm{13259}}^1$

素因数の和:13276

約数の個数: 28

約数和(自身を含む): 10104120

約数和(自身を除く): 5861240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 13259, 26518, 53036, 66295, 106072, 132590, 212144, 265180, 424288, 530360, 848576, 1060720, 2121440, 4242880]

約数ペア:

[(1, 4242880), (2, 2121440), (4, 1060720), (5, 848576), (8, 530360), (10, 424288), (16, 265180), (20, 212144), (32, 132590), (40, 106072), (64, 66295), (80, 53036), (160, 26518), (320, 13259)]