418448380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{21503}}^1$

素因数の和:21658

約数の個数: 48

約数和(自身を含む): 1011548160

約数和(自身を除く): 593099780

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, 9730, 19460, 21503, 43006, 86012, 107515, 150521, 215030, 301042, 430060, 602084, 752605, 1505210, 2988917, 3010420, 5977834, 11955668, 14944585, 20922419, 29889170, 41844838, 59778340, 83689676, 104612095, 209224190, 418448380]

約数ペア:

[(1, 418448380), (2, 209224190), (4, 104612095), (5, 83689676), (7, 59778340), (10, 41844838), (14, 29889170), (20, 20922419), (28, 14944585), (35, 11955668), (70, 5977834), (139, 3010420), (140, 2988917), (278, 1505210), (556, 752605), (695, 602084), (973, 430060), (1390, 301042), (1946, 215030), (2780, 150521), (3892, 107515), (4865, 86012), (9730, 43006), (19460, 21503)]