28408670

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1\times {\mathrm{389}}^1$

素因数の和:572

約数の個数: 32

約数和(自身を含む): 52509600

約数和(自身を除く): 24100930

約数列:

[1, 2, 5, 10, 67, 109, 134, 218, 335, 389, 545, 670, 778, 1090, 1945, 3890, 7303, 14606, 26063, 36515, 42401, 52126, 73030, 84802, 130315, 212005, 260630, 424010, 2840867, 5681734, 14204335, 28408670]

約数ペア:

[(1, 28408670), (2, 14204335), (5, 5681734), (10, 2840867), (67, 424010), (109, 260630), (134, 212005), (218, 130315), (335, 84802), (389, 73030), (545, 52126), (670, 42401), (778, 36515), (1090, 26063), (1945, 14606), (3890, 7303)]