156961475

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8039}}^1$

素因数の和:8131

約数の個数: 24

約数和(自身を含む): 215343360

約数和(自身を除く): 58381885

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1775, 3905, 8039, 19525, 40195, 88429, 200975, 442145, 570769, 2210725, 2853845, 6278459, 14269225, 31392295, 156961475]

約数ペア:

[(1, 156961475), (5, 31392295), (11, 14269225), (25, 6278459), (55, 2853845), (71, 2210725), (275, 570769), (355, 442145), (781, 200975), (1775, 88429), (3905, 40195), (8039, 19525)]