203489455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{211}}^1\times {\mathrm{401}}^1$

素因数の和:667

約数の個数: 32

約数和(自身を含む): 272035008

約数和(自身を除く): 68545553

約数列:

[1, 5, 13, 37, 65, 185, 211, 401, 481, 1055, 2005, 2405, 2743, 5213, 7807, 13715, 14837, 26065, 39035, 74185, 84611, 101491, 192881, 423055, 507455, 964405, 1099943, 3130607, 5499715, 15653035, 40697891, 203489455]

約数ペア:

[(1, 203489455), (5, 40697891), (13, 15653035), (37, 5499715), (65, 3130607), (185, 1099943), (211, 964405), (401, 507455), (481, 423055), (1055, 192881), (2005, 101491), (2405, 84611), (2743, 74185), (5213, 39035), (7807, 26065), (13715, 14837)]