7141820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{367}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 17310720

約数和(自身を除く): 10168900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 367, 556, 695, 734, 973, 1390, 1468, 1835, 1946, 2569, 2780, 3670, 3892, 4865, 5138, 7340, 9730, 10276, 12845, 19460, 25690, 51013, 51380, 102026, 204052, 255065, 357091, 510130, 714182, 1020260, 1428364, 1785455, 3570910, 7141820]

約数ペア:

[(1, 7141820), (2, 3570910), (4, 1785455), (5, 1428364), (7, 1020260), (10, 714182), (14, 510130), (20, 357091), (28, 255065), (35, 204052), (70, 102026), (139, 51380), (140, 51013), (278, 25690), (367, 19460), (556, 12845), (695, 10276), (734, 9730), (973, 7340), (1390, 5138), (1468, 4865), (1835, 3892), (1946, 3670), (2569, 2780)]