69720760

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{15991}}^1$

素因数の和:16111

約数の個数: 32

約数和(自身を含む): 158320800

約数和(自身を除く): 88600040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 15991, 31982, 63964, 79955, 127928, 159910, 319820, 639640, 1743019, 3486038, 6972076, 8715095, 13944152, 17430190, 34860380, 69720760]

約数ペア:

[(1, 69720760), (2, 34860380), (4, 17430190), (5, 13944152), (8, 8715095), (10, 6972076), (20, 3486038), (40, 1743019), (109, 639640), (218, 319820), (436, 159910), (545, 127928), (872, 79955), (1090, 63964), (2180, 31982), (4360, 15991)]