207655940

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{1489}}^1$

素因数の和:1884

約数の個数: 48

約数和(自身を含む): 460588800

約数和(自身を除く): 252932860

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 367, 380, 734, 1468, 1489, 1835, 2978, 3670, 5956, 6973, 7340, 7445, 13946, 14890, 27892, 28291, 29780, 34865, 56582, 69730, 113164, 139460, 141455, 282910, 546463, 565820, 1092926, 2185852, 2732315, 5464630, 10382797, 10929260, 20765594, 41531188, 51913985, 103827970, 207655940]

約数ペア:

[(1, 207655940), (2, 103827970), (4, 51913985), (5, 41531188), (10, 20765594), (19, 10929260), (20, 10382797), (38, 5464630), (76, 2732315), (95, 2185852), (190, 1092926), (367, 565820), (380, 546463), (734, 282910), (1468, 141455), (1489, 139460), (1835, 113164), (2978, 69730), (3670, 56582), (5956, 34865), (6973, 29780), (7340, 28291), (7445, 27892), (13946, 14890)]