7936640

素因数分解:

$2^7\times 5^1\times {\mathrm{12401}}^1$

素因数の和:12420

約数の個数: 32

約数和(自身を含む): 18975060

約数和(自身を除く): 11038420

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 12401, 24802, 49604, 62005, 99208, 124010, 198416, 248020, 396832, 496040, 793664, 992080, 1587328, 1984160, 3968320, 7936640]

約数ペア:

[(1, 7936640), (2, 3968320), (4, 1984160), (5, 1587328), (8, 992080), (10, 793664), (16, 496040), (20, 396832), (32, 248020), (40, 198416), (64, 124010), (80, 99208), (128, 62005), (160, 49604), (320, 24802), (640, 12401)]