18270725

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^2\times {\mathrm{79}}^1$

素因数の和:158

約数の個数: 36

約数和(自身を含む): 25920960

約数和(自身を除く): 7650235

約数列:

[1, 5, 11, 25, 29, 55, 79, 145, 275, 319, 395, 725, 841, 869, 1595, 1975, 2291, 4205, 4345, 7975, 9251, 11455, 21025, 21725, 25201, 46255, 57275, 66439, 126005, 231275, 332195, 630025, 730829, 1660975, 3654145, 18270725]

約数ペア:

[(1, 18270725), (5, 3654145), (11, 1660975), (25, 730829), (29, 630025), (55, 332195), (79, 231275), (145, 126005), (275, 66439), (319, 57275), (395, 46255), (725, 25201), (841, 21725), (869, 21025), (1595, 11455), (1975, 9251), (2291, 7975), (4205, 4345)]