128424380

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{917317}}^1$

素因数の和:917333

約数の個数: 24

約数和(自身を含む): 308218848

約数和(自身を除く): 179794468

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 917317, 1834634, 3669268, 4586585, 6421219, 9173170, 12842438, 18346340, 25684876, 32106095, 64212190, 128424380]

約数ペア:

[(1, 128424380), (2, 64212190), (4, 32106095), (5, 25684876), (7, 18346340), (10, 12842438), (14, 9173170), (20, 6421219), (28, 4586585), (35, 3669268), (70, 1834634), (140, 917317)]