4320760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{991}}^1$

素因数の和:1111

約数の個数: 32

約数和(自身を含む): 9820800

約数和(自身を除く): 5500040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 991, 1090, 1982, 2180, 3964, 4360, 4955, 7928, 9910, 19820, 39640, 108019, 216038, 432076, 540095, 864152, 1080190, 2160380, 4320760]

約数ペア:

[(1, 4320760), (2, 2160380), (4, 1080190), (5, 864152), (8, 540095), (10, 432076), (20, 216038), (40, 108019), (109, 39640), (218, 19820), (436, 9910), (545, 7928), (872, 4955), (991, 4360), (1090, 3964), (1982, 2180)]