638564752

素因数分解:

$2^4\times 7^1\times {\mathrm{1123}}^1\times {\mathrm{5077}}^1$

素因数の和:6215

約数の個数: 40

約数和(自身を含む): 1415502656

約数和(自身を除く): 776937904

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1123, 2246, 4492, 5077, 7861, 8984, 10154, 15722, 17968, 20308, 31444, 35539, 40616, 62888, 71078, 81232, 125776, 142156, 284312, 568624, 5701471, 11402942, 22805884, 39910297, 45611768, 79820594, 91223536, 159641188, 319282376, 638564752]

約数ペア:

[(1, 638564752), (2, 319282376), (4, 159641188), (7, 91223536), (8, 79820594), (14, 45611768), (16, 39910297), (28, 22805884), (56, 11402942), (112, 5701471), (1123, 568624), (2246, 284312), (4492, 142156), (5077, 125776), (7861, 81232), (8984, 71078), (10154, 62888), (15722, 40616), (17968, 35539), (20308, 31444)]