64493960

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{43577}}^1$

素因数の和:43625

約数の個数: 32

約数和(自身を含む): 149036760

約数和(自身を除く): 84542800

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 148, 185, 296, 370, 740, 1480, 43577, 87154, 174308, 217885, 348616, 435770, 871540, 1612349, 1743080, 3224698, 6449396, 8061745, 12898792, 16123490, 32246980, 64493960]

約数ペア:

[(1, 64493960), (2, 32246980), (4, 16123490), (5, 12898792), (8, 8061745), (10, 6449396), (20, 3224698), (37, 1743080), (40, 1612349), (74, 871540), (148, 435770), (185, 348616), (296, 217885), (370, 174308), (740, 87154), (1480, 43577)]