64613720

素因数分解:

$2^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{34369}}^1$

素因数の和:34427

約数の個数: 32

約数和(自身を含む): 148478400

約数和(自身を除く): 83864680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 47, 94, 188, 235, 376, 470, 940, 1880, 34369, 68738, 137476, 171845, 274952, 343690, 687380, 1374760, 1615343, 3230686, 6461372, 8076715, 12922744, 16153430, 32306860, 64613720]

約数ペア:

[(1, 64613720), (2, 32306860), (4, 16153430), (5, 12922744), (8, 8076715), (10, 6461372), (20, 3230686), (40, 1615343), (47, 1374760), (94, 687380), (188, 343690), (235, 274952), (376, 171845), (470, 137476), (940, 68738), (1880, 34369)]