64215680

素因数分解:

$2^7\times 5^1\times {\mathrm{269}}^1\times {\mathrm{373}}^1$

素因数の和:661

約数の個数: 64

約数和(自身を含む): 154499400

約数和(自身を除く): 90283720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 269, 320, 373, 538, 640, 746, 1076, 1345, 1492, 1865, 2152, 2690, 2984, 3730, 4304, 5380, 5968, 7460, 8608, 10760, 11936, 14920, 17216, 21520, 23872, 29840, 34432, 43040, 47744, 59680, 86080, 100337, 119360, 172160, 200674, 238720, 401348, 501685, 802696, 1003370, 1605392, 2006740, 3210784, 4013480, 6421568, 8026960, 12843136, 16053920, 32107840, 64215680]

約数ペア:

[(1, 64215680), (2, 32107840), (4, 16053920), (5, 12843136), (8, 8026960), (10, 6421568), (16, 4013480), (20, 3210784), (32, 2006740), (40, 1605392), (64, 1003370), (80, 802696), (128, 501685), (160, 401348), (269, 238720), (320, 200674), (373, 172160), (538, 119360), (640, 100337), (746, 86080), (1076, 59680), (1345, 47744), (1492, 43040), (1865, 34432), (2152, 29840), (2690, 23872), (2984, 21520), (3730, 17216), (4304, 14920), (5380, 11936), (5968, 10760), (7460, 8608)]