20163554800

素因数分解:

$2^4\times 5^2\times {\mathrm{659}}^1\times {\mathrm{76493}}^1$

素因数の和:77170

約数の個数: 60

約数和(自身を含む): 48517084440

約数和(自身を除く): 28353529640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 659, 1318, 2636, 3295, 5272, 6590, 10544, 13180, 16475, 26360, 32950, 52720, 65900, 76493, 131800, 152986, 263600, 305972, 382465, 611944, 764930, 1223888, 1529860, 1912325, 3059720, 3824650, 6119440, 7649300, 15298600, 30597200, 50408887, 100817774, 201635548, 252044435, 403271096, 504088870, 806542192, 1008177740, 1260222175, 2016355480, 2520444350, 4032710960, 5040888700, 10081777400, 20163554800]

約数ペア:

[(1, 20163554800), (2, 10081777400), (4, 5040888700), (5, 4032710960), (8, 2520444350), (10, 2016355480), (16, 1260222175), (20, 1008177740), (25, 806542192), (40, 504088870), (50, 403271096), (80, 252044435), (100, 201635548), (200, 100817774), (400, 50408887), (659, 30597200), (1318, 15298600), (2636, 7649300), (3295, 6119440), (5272, 3824650), (6590, 3059720), (10544, 1912325), (13180, 1529860), (16475, 1223888), (26360, 764930), (32950, 611944), (52720, 382465), (65900, 305972), (76493, 263600), (131800, 152986)]