82784840

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{8053}}^1$

素因数の和:8321

約数の個数: 32

約数和(自身を含む): 187013880

約数和(自身を除く): 104229040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 2056, 2570, 5140, 8053, 10280, 16106, 32212, 40265, 64424, 80530, 161060, 322120, 2069621, 4139242, 8278484, 10348105, 16556968, 20696210, 41392420, 82784840]

約数ペア:

[(1, 82784840), (2, 41392420), (4, 20696210), (5, 16556968), (8, 10348105), (10, 8278484), (20, 4139242), (40, 2069621), (257, 322120), (514, 161060), (1028, 80530), (1285, 64424), (2056, 40265), (2570, 32212), (5140, 16106), (8053, 10280)]