1929200020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{90403}}^1$

素因数の和:90520

約数の個数: 48

約数和(自身を含む): 4465234368

約数和(自身を除く): 2536034348

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 97, 110, 194, 220, 388, 485, 970, 1067, 1940, 2134, 4268, 5335, 10670, 21340, 90403, 180806, 361612, 452015, 904030, 994433, 1808060, 1988866, 3977732, 4972165, 8769091, 9944330, 17538182, 19888660, 35076364, 43845455, 87690910, 96460001, 175381820, 192920002, 385840004, 482300005, 964600010, 1929200020]

約数ペア:

[(1, 1929200020), (2, 964600010), (4, 482300005), (5, 385840004), (10, 192920002), (11, 175381820), (20, 96460001), (22, 87690910), (44, 43845455), (55, 35076364), (97, 19888660), (110, 17538182), (194, 9944330), (220, 8769091), (388, 4972165), (485, 3977732), (970, 1988866), (1067, 1808060), (1940, 994433), (2134, 904030), (4268, 452015), (5335, 361612), (10670, 180806), (21340, 90403)]