28915480

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{65717}}^1$

素因数の和:65739

約数の個数: 32

約数和(自身を含む): 70975440

約数和(自身を除く): 42059960

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 65717, 131434, 262868, 328585, 525736, 657170, 722887, 1314340, 1445774, 2628680, 2891548, 3614435, 5783096, 7228870, 14457740, 28915480]

約数ペア:

[(1, 28915480), (2, 14457740), (4, 7228870), (5, 5783096), (8, 3614435), (10, 2891548), (11, 2628680), (20, 1445774), (22, 1314340), (40, 722887), (44, 657170), (55, 525736), (88, 328585), (110, 262868), (220, 131434), (440, 65717)]