212421020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{14731}}^1$

素因数の和:14850

約数の個数: 48

約数和(自身を含む): 514795008

約数和(自身を除く): 302373988

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 103, 140, 206, 412, 515, 721, 1030, 1442, 2060, 2884, 3605, 7210, 14420, 14731, 29462, 58924, 73655, 103117, 147310, 206234, 294620, 412468, 515585, 1031170, 1517293, 2062340, 3034586, 6069172, 7586465, 10621051, 15172930, 21242102, 30345860, 42484204, 53105255, 106210510, 212421020]

約数ペア:

[(1, 212421020), (2, 106210510), (4, 53105255), (5, 42484204), (7, 30345860), (10, 21242102), (14, 15172930), (20, 10621051), (28, 7586465), (35, 6069172), (70, 3034586), (103, 2062340), (140, 1517293), (206, 1031170), (412, 515585), (515, 412468), (721, 294620), (1030, 206234), (1442, 147310), (2060, 103117), (2884, 73655), (3605, 58924), (7210, 29462), (14420, 14731)]