1284652520

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{746891}}^1$

素因数の和:746945

約数の個数: 32

約数和(自身を含む): 2957692320

約数和(自身を除く): 1673039800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 746891, 1493782, 2987564, 3734455, 5975128, 7468910, 14937820, 29875640, 32116313, 64232626, 128465252, 160581565, 256930504, 321163130, 642326260, 1284652520]

約数ペア:

[(1, 1284652520), (2, 642326260), (4, 321163130), (5, 256930504), (8, 160581565), (10, 128465252), (20, 64232626), (40, 32116313), (43, 29875640), (86, 14937820), (172, 7468910), (215, 5975128), (344, 3734455), (430, 2987564), (860, 1493782), (1720, 746891)]