253722145

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{269}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 323326080

約数和(自身を除く): 69603935

約数列:

[1, 5, 41, 43, 107, 205, 215, 269, 535, 1345, 1763, 4387, 4601, 8815, 11029, 11567, 21935, 23005, 28783, 55145, 57835, 143915, 188641, 474247, 943205, 1180103, 1237669, 2371235, 5900515, 6188345, 50744429, 253722145]

約数ペア:

[(1, 253722145), (5, 50744429), (41, 6188345), (43, 5900515), (107, 2371235), (205, 1237669), (215, 1180103), (269, 943205), (535, 474247), (1345, 188641), (1763, 143915), (4387, 57835), (4601, 55145), (8815, 28783), (11029, 23005), (11567, 21935)]