210005380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{1493}}^1$

素因数の和:2056

約数の個数: 48

約数和(自身を含む): 476131824

約数和(自身を除く): 266126444

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 541, 1082, 1493, 2164, 2705, 2986, 5410, 5972, 7033, 7465, 10820, 14066, 14930, 19409, 28132, 29860, 35165, 38818, 70330, 77636, 97045, 140660, 194090, 388180, 807713, 1615426, 3230852, 4038565, 8077130, 10500269, 16154260, 21000538, 42001076, 52501345, 105002690, 210005380]

約数ペア:

[(1, 210005380), (2, 105002690), (4, 52501345), (5, 42001076), (10, 21000538), (13, 16154260), (20, 10500269), (26, 8077130), (52, 4038565), (65, 3230852), (130, 1615426), (260, 807713), (541, 388180), (1082, 194090), (1493, 140660), (2164, 97045), (2705, 77636), (2986, 70330), (5410, 38818), (5972, 35165), (7033, 29860), (7465, 28132), (10820, 19409), (14066, 14930)]