5390420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{277}}^1$

素因数の和:432

約数の個数: 48

約数和(自身を含む): 13077120

約数和(自身を除く): 7686700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 277, 278, 554, 556, 695, 973, 1108, 1385, 1390, 1939, 1946, 2770, 2780, 3878, 3892, 4865, 5540, 7756, 9695, 9730, 19390, 19460, 38503, 38780, 77006, 154012, 192515, 269521, 385030, 539042, 770060, 1078084, 1347605, 2695210, 5390420]

約数ペア:

[(1, 5390420), (2, 2695210), (4, 1347605), (5, 1078084), (7, 770060), (10, 539042), (14, 385030), (20, 269521), (28, 192515), (35, 154012), (70, 77006), (139, 38780), (140, 38503), (277, 19460), (278, 19390), (554, 9730), (556, 9695), (695, 7756), (973, 5540), (1108, 4865), (1385, 3892), (1390, 3878), (1939, 2780), (1946, 2770)]