72621920

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:245

約数の個数: 144

約数和(自身を含む): 204256080

約数和(自身を除く): 131634160

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 59, 70, 80, 98, 112, 118, 140, 157, 160, 196, 224, 236, 245, 280, 295, 314, 392, 413, 472, 490, 560, 590, 628, 784, 785, 826, 944, 980, 1099, 1120, 1180, 1256, 1568, 1570, 1652, 1888, 1960, 2065, 2198, 2360, 2512, 2891, 3140, 3304, 3920, 4130, 4396, 4720, 5024, 5495, 5782, 6280, 6608, 7693, 7840, 8260, 8792, 9263, 9440, 10990, 11564, 12560, 13216, 14455, 15386, 16520, 17584, 18526, 21980, 23128, 25120, 28910, 30772, 33040, 35168, 37052, 38465, 43960, 46256, 46315, 57820, 61544, 64841, 66080, 74104, 76930, 87920, 92512, 92630, 115640, 123088, 129682, 148208, 153860, 175840, 185260, 231280, 246176, 259364, 296416, 307720, 324205, 370520, 453887, 462560, 518728, 615440, 648410, 741040, 907774, 1037456, 1230880, 1296820, 1482080, 1815548, 2074912, 2269435, 2593640, 3631096, 4538870, 5187280, 7262192, 9077740, 10374560, 14524384, 18155480, 36310960, 72621920]

約数ペア:

[(1, 72621920), (2, 36310960), (4, 18155480), (5, 14524384), (7, 10374560), (8, 9077740), (10, 7262192), (14, 5187280), (16, 4538870), (20, 3631096), (28, 2593640), (32, 2269435), (35, 2074912), (40, 1815548), (49, 1482080), (56, 1296820), (59, 1230880), (70, 1037456), (80, 907774), (98, 741040), (112, 648410), (118, 615440), (140, 518728), (157, 462560), (160, 453887), (196, 370520), (224, 324205), (236, 307720), (245, 296416), (280, 259364), (295, 246176), (314, 231280), (392, 185260), (413, 175840), (472, 153860), (490, 148208), (560, 129682), (590, 123088), (628, 115640), (784, 92630), (785, 92512), (826, 87920), (944, 76930), (980, 74104), (1099, 66080), (1120, 64841), (1180, 61544), (1256, 57820), (1568, 46315), (1570, 46256), (1652, 43960), (1888, 38465), (1960, 37052), (2065, 35168), (2198, 33040), (2360, 30772), (2512, 28910), (2891, 25120), (3140, 23128), (3304, 21980), (3920, 18526), (4130, 17584), (4396, 16520), (4720, 15386), (5024, 14455), (5495, 13216), (5782, 12560), (6280, 11564), (6608, 10990), (7693, 9440), (7840, 9263), (8260, 8792)]