68921895

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 130507776

約数和(自身を除く): 61585881

約数列:

[1, 3, 5, 7, 15, 21, 35, 67, 97, 101, 105, 201, 291, 303, 335, 469, 485, 505, 679, 707, 1005, 1407, 1455, 1515, 2037, 2121, 2345, 3395, 3535, 6499, 6767, 7035, 9797, 10185, 10605, 19497, 20301, 29391, 32495, 33835, 45493, 47369, 48985, 68579, 97485, 101505, 136479, 142107, 146955, 205737, 227465, 236845, 342895, 656399, 682395, 710535, 1028685, 1969197, 3281995, 4594793, 9845985, 13784379, 22973965, 68921895]

約数ペア:

[(1, 68921895), (3, 22973965), (5, 13784379), (7, 9845985), (15, 4594793), (21, 3281995), (35, 1969197), (67, 1028685), (97, 710535), (101, 682395), (105, 656399), (201, 342895), (291, 236845), (303, 227465), (335, 205737), (469, 146955), (485, 142107), (505, 136479), (679, 101505), (707, 97485), (1005, 68579), (1407, 48985), (1455, 47369), (1515, 45493), (2037, 33835), (2121, 32495), (2345, 29391), (3395, 20301), (3535, 19497), (6499, 10605), (6767, 10185), (7035, 9797)]