164023040

素因数分解:

$2^8\times 5^1\times {\mathrm{127}}^1\times {\mathrm{1009}}^1$

素因数の和:1157

約数の個数: 72

約数和(自身を含む): 396372480

約数和(自身を除く): 232349440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 127, 128, 160, 254, 256, 320, 508, 635, 640, 1009, 1016, 1270, 1280, 2018, 2032, 2540, 4036, 4064, 5045, 5080, 8072, 8128, 10090, 10160, 16144, 16256, 20180, 20320, 32288, 32512, 40360, 40640, 64576, 80720, 81280, 128143, 129152, 161440, 162560, 256286, 258304, 322880, 512572, 640715, 645760, 1025144, 1281430, 1291520, 2050288, 2562860, 4100576, 5125720, 8201152, 10251440, 16402304, 20502880, 32804608, 41005760, 82011520, 164023040]

約数ペア:

[(1, 164023040), (2, 82011520), (4, 41005760), (5, 32804608), (8, 20502880), (10, 16402304), (16, 10251440), (20, 8201152), (32, 5125720), (40, 4100576), (64, 2562860), (80, 2050288), (127, 1291520), (128, 1281430), (160, 1025144), (254, 645760), (256, 640715), (320, 512572), (508, 322880), (635, 258304), (640, 256286), (1009, 162560), (1016, 161440), (1270, 129152), (1280, 128143), (2018, 81280), (2032, 80720), (2540, 64576), (4036, 40640), (4064, 40360), (5045, 32512), (5080, 32288), (8072, 20320), (8128, 20180), (10090, 16256), (10160, 16144)]