169085440

素因数分解:

$2^9\times 5^1\times {\mathrm{257}}^2$

素因数の和:537

約数の個数: 60

約数和(自身を含む): 406992366

約数和(自身を除く): 237906926

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 512, 514, 640, 1028, 1280, 1285, 2056, 2560, 2570, 4112, 5140, 8224, 10280, 16448, 20560, 32896, 41120, 65792, 66049, 82240, 131584, 132098, 164480, 264196, 328960, 330245, 528392, 657920, 660490, 1056784, 1320980, 2113568, 2641960, 4227136, 5283920, 8454272, 10567840, 16908544, 21135680, 33817088, 42271360, 84542720, 169085440]

約数ペア:

[(1, 169085440), (2, 84542720), (4, 42271360), (5, 33817088), (8, 21135680), (10, 16908544), (16, 10567840), (20, 8454272), (32, 5283920), (40, 4227136), (64, 2641960), (80, 2113568), (128, 1320980), (160, 1056784), (256, 660490), (257, 657920), (320, 528392), (512, 330245), (514, 328960), (640, 264196), (1028, 164480), (1280, 132098), (1285, 131584), (2056, 82240), (2560, 66049), (2570, 65792), (4112, 41120), (5140, 32896), (8224, 20560), (10280, 16448)]