128030080

素因数分解:

$2^7\times 5^1\times {\mathrm{251}}^1\times {\mathrm{797}}^1$

素因数の和:1067

約数の個数: 64

約数和(自身を含む): 307676880

約数和(自身を除く): 179646800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 251, 320, 502, 640, 797, 1004, 1255, 1594, 2008, 2510, 3188, 3985, 4016, 5020, 6376, 7970, 8032, 10040, 12752, 15940, 16064, 20080, 25504, 31880, 32128, 40160, 51008, 63760, 80320, 102016, 127520, 160640, 200047, 255040, 400094, 510080, 800188, 1000235, 1600376, 2000470, 3200752, 4000940, 6401504, 8001880, 12803008, 16003760, 25606016, 32007520, 64015040, 128030080]

約数ペア:

[(1, 128030080), (2, 64015040), (4, 32007520), (5, 25606016), (8, 16003760), (10, 12803008), (16, 8001880), (20, 6401504), (32, 4000940), (40, 3200752), (64, 2000470), (80, 1600376), (128, 1000235), (160, 800188), (251, 510080), (320, 400094), (502, 255040), (640, 200047), (797, 160640), (1004, 127520), (1255, 102016), (1594, 80320), (2008, 63760), (2510, 51008), (3188, 40160), (3985, 32128), (4016, 31880), (5020, 25504), (6376, 20080), (7970, 16064), (8032, 15940), (10040, 12752)]