39364540

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{197}}^1$

素因数の和:406

約数の個数: 48

約数和(自身を含む): 84756672

約数和(自身を除く): 45392132

約数列:

[1, 2, 4, 5, 10, 20, 97, 103, 194, 197, 206, 388, 394, 412, 485, 515, 788, 970, 985, 1030, 1940, 1970, 2060, 3940, 9991, 19109, 19982, 20291, 38218, 39964, 40582, 49955, 76436, 81164, 95545, 99910, 101455, 191090, 199820, 202910, 382180, 405820, 1968227, 3936454, 7872908, 9841135, 19682270, 39364540]

約数ペア:

[(1, 39364540), (2, 19682270), (4, 9841135), (5, 7872908), (10, 3936454), (20, 1968227), (97, 405820), (103, 382180), (194, 202910), (197, 199820), (206, 191090), (388, 101455), (394, 99910), (412, 95545), (485, 81164), (515, 76436), (788, 49955), (970, 40582), (985, 39964), (1030, 38218), (1940, 20291), (1970, 19982), (2060, 19109), (3940, 9991)]