81896465

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{431}}^1$

素因数の和:593

約数の個数: 32

約数和(自身を含む): 115706880

約数和(自身を除く): 33810415

約数列:

[1, 5, 7, 35, 61, 89, 305, 427, 431, 445, 623, 2135, 2155, 3017, 3115, 5429, 15085, 26291, 27145, 38003, 38359, 131455, 184037, 190015, 191795, 268513, 920185, 1342565, 2339899, 11699495, 16379293, 81896465]

約数ペア:

[(1, 81896465), (5, 16379293), (7, 11699495), (35, 2339899), (61, 1342565), (89, 920185), (305, 268513), (427, 191795), (431, 190015), (445, 184037), (623, 131455), (2135, 38359), (2155, 38003), (3017, 27145), (3115, 26291), (5429, 15085)]