205890503

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{23}}^2\times {\mathrm{47}}^1$

素因数の和:133

約数の個数: 54

約数和(自身を含む): 276880464

約数和(自身を除く): 70989961

約数列:

[1, 7, 13, 23, 47, 49, 91, 161, 169, 299, 329, 529, 611, 637, 1081, 1127, 1183, 2093, 2303, 3703, 3887, 4277, 6877, 7567, 7943, 8281, 14053, 14651, 24863, 25921, 27209, 29939, 48139, 52969, 55601, 89401, 98371, 174041, 182689, 190463, 323219, 336973, 389207, 625807, 688597, 1218287, 1278823, 2262533, 4201847, 4380649, 8951761, 15837731, 29412929, 205890503]

約数ペア:

[(1, 205890503), (7, 29412929), (13, 15837731), (23, 8951761), (47, 4380649), (49, 4201847), (91, 2262533), (161, 1278823), (169, 1218287), (299, 688597), (329, 625807), (529, 389207), (611, 336973), (637, 323219), (1081, 190463), (1127, 182689), (1183, 174041), (2093, 98371), (2303, 89401), (3703, 55601), (3887, 52969), (4277, 48139), (6877, 29939), (7567, 27209), (7943, 25921), (8281, 24863), (14053, 14651)]