161217280

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{947}}^1$

素因数の和:994

約数の個数: 144

約数和(自身を含む): 465050880

約数和(自身を除く): 303833600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 28, 32, 35, 38, 40, 56, 64, 70, 76, 80, 95, 112, 128, 133, 140, 152, 160, 190, 224, 256, 266, 280, 304, 320, 380, 448, 532, 560, 608, 640, 665, 760, 896, 947, 1064, 1120, 1216, 1280, 1330, 1520, 1792, 1894, 2128, 2240, 2432, 2660, 3040, 3788, 4256, 4480, 4735, 4864, 5320, 6080, 6629, 7576, 8512, 8960, 9470, 10640, 12160, 13258, 15152, 17024, 17993, 18940, 21280, 24320, 26516, 30304, 33145, 34048, 35986, 37880, 42560, 53032, 60608, 66290, 71972, 75760, 85120, 89965, 106064, 121216, 125951, 132580, 143944, 151520, 170240, 179930, 212128, 242432, 251902, 265160, 287888, 303040, 359860, 424256, 503804, 530320, 575776, 606080, 629755, 719720, 848512, 1007608, 1060640, 1151552, 1212160, 1259510, 1439440, 1697024, 2015216, 2121280, 2303104, 2519020, 2878880, 4030432, 4242560, 4606208, 5038040, 5757760, 8060864, 8485120, 10076080, 11515520, 16121728, 20152160, 23031040, 32243456, 40304320, 80608640, 161217280]

約数ペア:

[(1, 161217280), (2, 80608640), (4, 40304320), (5, 32243456), (7, 23031040), (8, 20152160), (10, 16121728), (14, 11515520), (16, 10076080), (19, 8485120), (20, 8060864), (28, 5757760), (32, 5038040), (35, 4606208), (38, 4242560), (40, 4030432), (56, 2878880), (64, 2519020), (70, 2303104), (76, 2121280), (80, 2015216), (95, 1697024), (112, 1439440), (128, 1259510), (133, 1212160), (140, 1151552), (152, 1060640), (160, 1007608), (190, 848512), (224, 719720), (256, 629755), (266, 606080), (280, 575776), (304, 530320), (320, 503804), (380, 424256), (448, 359860), (532, 303040), (560, 287888), (608, 265160), (640, 251902), (665, 242432), (760, 212128), (896, 179930), (947, 170240), (1064, 151520), (1120, 143944), (1216, 132580), (1280, 125951), (1330, 121216), (1520, 106064), (1792, 89965), (1894, 85120), (2128, 75760), (2240, 71972), (2432, 66290), (2660, 60608), (3040, 53032), (3788, 42560), (4256, 37880), (4480, 35986), (4735, 34048), (4864, 33145), (5320, 30304), (6080, 26516), (6629, 24320), (7576, 21280), (8512, 18940), (8960, 17993), (9470, 17024), (10640, 15152), (12160, 13258)]