156916235

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{397}}^1\times {\mathrm{491}}^1$

素因数の和:923

約数の個数: 32

約数和(自身を含む): 225580032

約数和(自身を除く): 68663797

約数列:

[1, 5, 7, 23, 35, 115, 161, 397, 491, 805, 1985, 2455, 2779, 3437, 9131, 11293, 13895, 17185, 45655, 56465, 63917, 79051, 194927, 319585, 395255, 974635, 1364489, 4483321, 6822445, 22416605, 31383247, 156916235]

約数ペア:

[(1, 156916235), (5, 31383247), (7, 22416605), (23, 6822445), (35, 4483321), (115, 1364489), (161, 974635), (397, 395255), (491, 319585), (805, 194927), (1985, 79051), (2455, 63917), (2779, 56465), (3437, 45655), (9131, 17185), (11293, 13895)]