3256280

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{641}}^1$

素因数の和:779

約数の個数: 32

約数和(自身を含む): 7395840

約数和(自身を除く): 4139560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 641, 1016, 1270, 1282, 2540, 2564, 3205, 5080, 5128, 6410, 12820, 25640, 81407, 162814, 325628, 407035, 651256, 814070, 1628140, 3256280]

約数ペア:

[(1, 3256280), (2, 1628140), (4, 814070), (5, 651256), (8, 407035), (10, 325628), (20, 162814), (40, 81407), (127, 25640), (254, 12820), (508, 6410), (635, 5128), (641, 5080), (1016, 3205), (1270, 2564), (1282, 2540)]