64076680

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{8387}}^1$

素因数の和:8589

約数の個数: 32

約数和(自身を含む): 144944640

約数和(自身を除く): 80867960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 8387, 16774, 33548, 41935, 67096, 83870, 167740, 335480, 1601917, 3203834, 6407668, 8009585, 12815336, 16019170, 32038340, 64076680]

約数ペア:

[(1, 64076680), (2, 32038340), (4, 16019170), (5, 12815336), (8, 8009585), (10, 6407668), (20, 3203834), (40, 1601917), (191, 335480), (382, 167740), (764, 83870), (955, 67096), (1528, 41935), (1910, 33548), (3820, 16774), (7640, 8387)]