7242880

素因数分解:

$2^7\times 5^1\times {\mathrm{11317}}^1$

素因数の和:11336

約数の個数: 32

約数和(自身を含む): 17316540

約数和(自身を除く): 10073660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 11317, 22634, 45268, 56585, 90536, 113170, 181072, 226340, 362144, 452680, 724288, 905360, 1448576, 1810720, 3621440, 7242880]

約数ペア:

[(1, 7242880), (2, 3621440), (4, 1810720), (5, 1448576), (8, 905360), (10, 724288), (16, 452680), (20, 362144), (32, 226340), (40, 181072), (64, 113170), (80, 90536), (128, 56585), (160, 45268), (320, 22634), (640, 11317)]