1291568

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{907}}^1$

素因数の和:1004

約数の個数: 20

約数和(自身を含む): 2533320

約数和(自身を除く): 1241752

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 907, 1424, 1814, 3628, 7256, 14512, 80723, 161446, 322892, 645784, 1291568]

約数ペア:

[(1, 1291568), (2, 645784), (4, 322892), (8, 161446), (16, 80723), (89, 14512), (178, 7256), (356, 3628), (712, 1814), (907, 1424)]