65399305

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^2\times {\mathrm{251}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 83365632

約数和(自身を除く): 17966327

約数列:

[1, 5, 31, 41, 155, 205, 251, 1255, 1271, 1681, 6355, 7781, 8405, 10291, 38905, 51455, 52111, 260555, 319021, 421931, 1595105, 2109655, 13079861, 65399305]

約数ペア:

[(1, 65399305), (5, 13079861), (31, 2109655), (41, 1595105), (155, 421931), (205, 319021), (251, 260555), (1255, 52111), (1271, 51455), (1681, 38905), (6355, 10291), (7781, 8405)]