131102020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{6737}}^1$

素因数の和:6892

約数の個数: 48

約数和(自身を含む): 316955520

約数和(自身を除く): 185853500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2780, 3892, 4865, 6737, 9730, 13474, 19460, 26948, 33685, 47159, 67370, 94318, 134740, 188636, 235795, 471590, 936443, 943180, 1872886, 3745772, 4682215, 6555101, 9364430, 13110202, 18728860, 26220404, 32775505, 65551010, 131102020]

約数ペア:

[(1, 131102020), (2, 65551010), (4, 32775505), (5, 26220404), (7, 18728860), (10, 13110202), (14, 9364430), (20, 6555101), (28, 4682215), (35, 3745772), (70, 1872886), (139, 943180), (140, 936443), (278, 471590), (556, 235795), (695, 188636), (973, 134740), (1390, 94318), (1946, 67370), (2780, 47159), (3892, 33685), (4865, 26948), (6737, 19460), (9730, 13474)]