320423680

素因数分解:

$2^8\times 5^1\times {\mathrm{173}}^1\times {\mathrm{1447}}^1$

素因数の和:1641

約数の個数: 72

約数和(自身を含む): 772484832

約数和(自身を除く): 452061152

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 173, 256, 320, 346, 640, 692, 865, 1280, 1384, 1447, 1730, 2768, 2894, 3460, 5536, 5788, 6920, 7235, 11072, 11576, 13840, 14470, 22144, 23152, 27680, 28940, 44288, 46304, 55360, 57880, 92608, 110720, 115760, 185216, 221440, 231520, 250331, 370432, 463040, 500662, 926080, 1001324, 1251655, 1852160, 2002648, 2503310, 4005296, 5006620, 8010592, 10013240, 16021184, 20026480, 32042368, 40052960, 64084736, 80105920, 160211840, 320423680]

約数ペア:

[(1, 320423680), (2, 160211840), (4, 80105920), (5, 64084736), (8, 40052960), (10, 32042368), (16, 20026480), (20, 16021184), (32, 10013240), (40, 8010592), (64, 5006620), (80, 4005296), (128, 2503310), (160, 2002648), (173, 1852160), (256, 1251655), (320, 1001324), (346, 926080), (640, 500662), (692, 463040), (865, 370432), (1280, 250331), (1384, 231520), (1447, 221440), (1730, 185216), (2768, 115760), (2894, 110720), (3460, 92608), (5536, 57880), (5788, 55360), (6920, 46304), (7235, 44288), (11072, 28940), (11576, 27680), (13840, 23152), (14470, 22144)]