64788880

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{62297}}^1$

素因数の和:62323

約数の個数: 40

約数和(自身を含む): 162223992

約数和(自身を除く): 97435112

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 62297, 124594, 249188, 311485, 498376, 622970, 809861, 996752, 1245940, 1619722, 2491880, 3239444, 4049305, 4983760, 6478888, 8098610, 12957776, 16197220, 32394440, 64788880]

約数ペア:

[(1, 64788880), (2, 32394440), (4, 16197220), (5, 12957776), (8, 8098610), (10, 6478888), (13, 4983760), (16, 4049305), (20, 3239444), (26, 2491880), (40, 1619722), (52, 1245940), (65, 996752), (80, 809861), (104, 622970), (130, 498376), (208, 311485), (260, 249188), (520, 124594), (1040, 62297)]