129442900

素因数分解:

$2^2\times 5^2\times {\mathrm{43}}^1\times {\mathrm{30103}}^1$

素因数の和:30160

約数の個数: 36

約数和(自身を含む): 287432992

約数和(自身を除く): 157990092

約数列:

[1, 2, 4, 5, 10, 20, 25, 43, 50, 86, 100, 172, 215, 430, 860, 1075, 2150, 4300, 30103, 60206, 120412, 150515, 301030, 602060, 752575, 1294429, 1505150, 2588858, 3010300, 5177716, 6472145, 12944290, 25888580, 32360725, 64721450, 129442900]

約数ペア:

[(1, 129442900), (2, 64721450), (4, 32360725), (5, 25888580), (10, 12944290), (20, 6472145), (25, 5177716), (43, 3010300), (50, 2588858), (86, 1505150), (100, 1294429), (172, 752575), (215, 602060), (430, 301030), (860, 150515), (1075, 120412), (2150, 60206), (4300, 30103)]