1321280

素因数分解:

$2^6\times 5^1\times {\mathrm{4129}}^1$

素因数の和:4146

約数の個数: 28

約数和(自身を含む): 3147060

約数和(自身を除く): 1825780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 4129, 8258, 16516, 20645, 33032, 41290, 66064, 82580, 132128, 165160, 264256, 330320, 660640, 1321280]

約数ペア:

[(1, 1321280), (2, 660640), (4, 330320), (5, 264256), (8, 165160), (10, 132128), (16, 82580), (20, 66064), (32, 41290), (40, 33032), (64, 20645), (80, 16516), (160, 8258), (320, 4129)]