1280236438

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{435751}}^1$

素因数の和:435879

約数の個数: 16

約数和(自身を含む): 2086380576

約数和(自身を除く): 806144138

約数列:

[1, 2, 13, 26, 113, 226, 1469, 2938, 435751, 871502, 5664763, 11329526, 49239863, 98479726, 640118219, 1280236438]

約数ペア:

[(1, 1280236438), (2, 640118219), (13, 98479726), (26, 49239863), (113, 11329526), (226, 5664763), (1469, 871502), (2938, 435751)]