1280451928

素因数分解:

$2^3\times 7^3\times {\mathrm{466637}}^1$

素因数の和:466664

約数の個数: 32

約数和(自身を含む): 2799828000

約数和(自身を除く): 1519376072

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 343, 392, 686, 1372, 2744, 466637, 933274, 1866548, 3266459, 3733096, 6532918, 13065836, 22865213, 26131672, 45730426, 91460852, 160056491, 182921704, 320112982, 640225964, 1280451928]

約数ペア:

[(1, 1280451928), (2, 640225964), (4, 320112982), (7, 182921704), (8, 160056491), (14, 91460852), (28, 45730426), (49, 26131672), (56, 22865213), (98, 13065836), (196, 6532918), (343, 3733096), (392, 3266459), (686, 1866548), (1372, 933274), (2744, 466637)]