256879168

素因数分解:

$2^6\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6301}}^1$

素因数の和:6340

約数の個数: 84

約数和(自身を含む): 638682492

約数和(自身を除く): 381803324

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 49, 52, 56, 64, 91, 98, 104, 112, 182, 196, 208, 224, 364, 392, 416, 448, 637, 728, 784, 832, 1274, 1456, 1568, 2548, 2912, 3136, 5096, 5824, 6301, 10192, 12602, 20384, 25204, 40768, 44107, 50408, 81913, 88214, 100816, 163826, 176428, 201632, 308749, 327652, 352856, 403264, 573391, 617498, 655304, 705712, 1146782, 1234996, 1310608, 1411424, 2293564, 2469992, 2621216, 2822848, 4013737, 4587128, 4939984, 5242432, 8027474, 9174256, 9879968, 16054948, 18348512, 19759936, 32109896, 36697024, 64219792, 128439584, 256879168]

約数ペア:

[(1, 256879168), (2, 128439584), (4, 64219792), (7, 36697024), (8, 32109896), (13, 19759936), (14, 18348512), (16, 16054948), (26, 9879968), (28, 9174256), (32, 8027474), (49, 5242432), (52, 4939984), (56, 4587128), (64, 4013737), (91, 2822848), (98, 2621216), (104, 2469992), (112, 2293564), (182, 1411424), (196, 1310608), (208, 1234996), (224, 1146782), (364, 705712), (392, 655304), (416, 617498), (448, 573391), (637, 403264), (728, 352856), (784, 327652), (832, 308749), (1274, 201632), (1456, 176428), (1568, 163826), (2548, 100816), (2912, 88214), (3136, 81913), (5096, 50408), (5824, 44107), (6301, 40768), (10192, 25204), (12602, 20384)]