82781439

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{229}}^1$

素因数の和:312

約数の個数: 48

約数和(自身を含む): 129300480

約数和(自身を除く): 46519041

約数列:

[1, 3, 13, 23, 31, 39, 69, 93, 169, 229, 299, 403, 507, 687, 713, 897, 1209, 2139, 2977, 3887, 5239, 5267, 7099, 8931, 9269, 11661, 15717, 15801, 21297, 27807, 38701, 68471, 92287, 116103, 120497, 163277, 205413, 276861, 361491, 489831, 890123, 1199731, 2122601, 2670369, 3599193, 6367803, 27593813, 82781439]

約数ペア:

[(1, 82781439), (3, 27593813), (13, 6367803), (23, 3599193), (31, 2670369), (39, 2122601), (69, 1199731), (93, 890123), (169, 489831), (229, 361491), (299, 276861), (403, 205413), (507, 163277), (687, 120497), (713, 116103), (897, 92287), (1209, 68471), (2139, 38701), (2977, 27807), (3887, 21297), (5239, 15801), (5267, 15717), (7099, 11661), (8931, 9269)]