161722085

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{2543}}^1$

素因数の和:2657

約数の個数: 32

約数和(自身を含む): 234455040

約数和(自身を除く): 72732955

約数列:

[1, 5, 7, 23, 35, 79, 115, 161, 395, 553, 805, 1817, 2543, 2765, 9085, 12715, 12719, 17801, 58489, 63595, 89005, 200897, 292445, 409423, 1004485, 1406279, 2047115, 4620631, 7031395, 23103155, 32344417, 161722085]

約数ペア:

[(1, 161722085), (5, 32344417), (7, 23103155), (23, 7031395), (35, 4620631), (79, 2047115), (115, 1406279), (161, 1004485), (395, 409423), (553, 292445), (805, 200897), (1817, 89005), (2543, 63595), (2765, 58489), (9085, 17801), (12715, 12719)]