81999505

素因数分解:

$5^1\times 7^1\times {\mathrm{167}}^1\times {\mathrm{14029}}^1$

素因数の和:14208

約数の個数: 16

約数和(自身を含む): 113137920

約数和(自身を除く): 31138415

約数列:

[1, 5, 7, 35, 167, 835, 1169, 5845, 14029, 70145, 98203, 491015, 2342843, 11714215, 16399901, 81999505]

約数ペア:

[(1, 81999505), (5, 16399901), (7, 11714215), (35, 2342843), (167, 491015), (835, 98203), (1169, 70145), (5845, 14029)]