64808750

素因数分解:

$2^1\times 5^4\times {\mathrm{139}}^1\times {\mathrm{373}}^1$

素因数の和:534

約数の個数: 40

約数和(自身を含む): 122679480

約数和(自身を除く): 57870730

約数列:

[1, 2, 5, 10, 25, 50, 125, 139, 250, 278, 373, 625, 695, 746, 1250, 1390, 1865, 3475, 3730, 6950, 9325, 17375, 18650, 34750, 46625, 51847, 86875, 93250, 103694, 173750, 233125, 259235, 466250, 518470, 1296175, 2592350, 6480875, 12961750, 32404375, 64808750]

約数ペア:

[(1, 64808750), (2, 32404375), (5, 12961750), (10, 6480875), (25, 2592350), (50, 1296175), (125, 518470), (139, 466250), (250, 259235), (278, 233125), (373, 173750), (625, 103694), (695, 93250), (746, 86875), (1250, 51847), (1390, 46625), (1865, 34750), (3475, 18650), (3730, 17375), (6950, 9325)]