257691876

素因数分解:

$2^2\times 3^1\times {\mathrm{13}}^2\times {\mathrm{283}}^1\times {\mathrm{449}}^1$

素因数の和:765

約数の個数: 72

約数和(自身を含む): 654847200

約数和(自身を除く): 397155324

約数列:

[1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156, 169, 283, 338, 449, 507, 566, 676, 849, 898, 1014, 1132, 1347, 1698, 1796, 2028, 2694, 3396, 3679, 5388, 5837, 7358, 11037, 11674, 14716, 17511, 22074, 23348, 35022, 44148, 47827, 70044, 75881, 95654, 127067, 143481, 151762, 191308, 227643, 254134, 286962, 303524, 381201, 455286, 508268, 573924, 762402, 910572, 1524804, 1651871, 3303742, 4955613, 6607484, 9911226, 19822452, 21474323, 42948646, 64422969, 85897292, 128845938, 257691876]

約数ペア:

[(1, 257691876), (2, 128845938), (3, 85897292), (4, 64422969), (6, 42948646), (12, 21474323), (13, 19822452), (26, 9911226), (39, 6607484), (52, 4955613), (78, 3303742), (156, 1651871), (169, 1524804), (283, 910572), (338, 762402), (449, 573924), (507, 508268), (566, 455286), (676, 381201), (849, 303524), (898, 286962), (1014, 254134), (1132, 227643), (1347, 191308), (1698, 151762), (1796, 143481), (2028, 127067), (2694, 95654), (3396, 75881), (3679, 70044), (5388, 47827), (5837, 44148), (7358, 35022), (11037, 23348), (11674, 22074), (14716, 17511)]