81780569

素因数分解:

${\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1\times {\mathrm{353}}^1$

素因数の和:688

約数の個数: 16

約数和(自身を含む): 89921664

約数和(自身を除く): 8141095

約数列:

[1, 13, 71, 251, 353, 923, 3263, 4589, 17821, 25063, 88603, 231673, 325819, 1151839, 6290813, 81780569]

約数ペア:

[(1, 81780569), (13, 6290813), (71, 1151839), (251, 325819), (353, 231673), (923, 88603), (3263, 25063), (4589, 17821)]