644823040

素因数分解:

$2^{11}\times 5^1\times {\mathrm{62971}}^1$

素因数の和:62998

約数の個数: 48

約数和(自身を含む): 1547222040

約数和(自身を除く): 902399000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2048, 2560, 5120, 10240, 62971, 125942, 251884, 314855, 503768, 629710, 1007536, 1259420, 2015072, 2518840, 4030144, 5037680, 8060288, 10075360, 16120576, 20150720, 32241152, 40301440, 64482304, 80602880, 128964608, 161205760, 322411520, 644823040]

約数ペア:

[(1, 644823040), (2, 322411520), (4, 161205760), (5, 128964608), (8, 80602880), (10, 64482304), (16, 40301440), (20, 32241152), (32, 20150720), (40, 16120576), (64, 10075360), (80, 8060288), (128, 5037680), (160, 4030144), (256, 2518840), (320, 2015072), (512, 1259420), (640, 1007536), (1024, 629710), (1280, 503768), (2048, 314855), (2560, 251884), (5120, 125942), (10240, 62971)]