64637020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{461693}}^1$

素因数の和:461709

約数の個数: 24

約数和(自身を含む): 155129184

約数和(自身を除く): 90492164

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 461693, 923386, 1846772, 2308465, 3231851, 4616930, 6463702, 9233860, 12927404, 16159255, 32318510, 64637020]

約数ペア:

[(1, 64637020), (2, 32318510), (4, 16159255), (5, 12927404), (7, 9233860), (10, 6463702), (14, 4616930), (20, 3231851), (28, 2308465), (35, 1846772), (70, 923386), (140, 461693)]