1303820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{139}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 3198720

約数和(自身を除く): 1894900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 139, 140, 268, 278, 335, 469, 556, 670, 695, 938, 973, 1340, 1390, 1876, 1946, 2345, 2780, 3892, 4690, 4865, 9313, 9380, 9730, 18626, 19460, 37252, 46565, 65191, 93130, 130382, 186260, 260764, 325955, 651910, 1303820]

約数ペア:

[(1, 1303820), (2, 651910), (4, 325955), (5, 260764), (7, 186260), (10, 130382), (14, 93130), (20, 65191), (28, 46565), (35, 37252), (67, 19460), (70, 18626), (134, 9730), (139, 9380), (140, 9313), (268, 4865), (278, 4690), (335, 3892), (469, 2780), (556, 2345), (670, 1946), (695, 1876), (938, 1390), (973, 1340)]