647625640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{852139}}^1$

素因数の和:852169

約数の個数: 32

約数和(自身を含む): 1533852000

約数和(自身を除く): 886226360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760, 852139, 1704278, 3408556, 4260695, 6817112, 8521390, 16190641, 17042780, 32381282, 34085560, 64762564, 80953205, 129525128, 161906410, 323812820, 647625640]

約数ペア:

[(1, 647625640), (2, 323812820), (4, 161906410), (5, 129525128), (8, 80953205), (10, 64762564), (19, 34085560), (20, 32381282), (38, 17042780), (40, 16190641), (76, 8521390), (95, 6817112), (152, 4260695), (190, 3408556), (380, 1704278), (760, 852139)]