2220995

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1$

素因数の和:155

約数の個数: 32

約数和(自身を含む): 3317760

約数和(自身を除く): 1096765

約数列:

[1, 5, 7, 23, 31, 35, 89, 115, 155, 161, 217, 445, 623, 713, 805, 1085, 2047, 2759, 3115, 3565, 4991, 10235, 13795, 14329, 19313, 24955, 63457, 71645, 96565, 317285, 444199, 2220995]

約数ペア:

[(1, 2220995), (5, 444199), (7, 317285), (23, 96565), (31, 71645), (35, 63457), (89, 24955), (115, 19313), (155, 14329), (161, 13795), (217, 10235), (445, 4991), (623, 3565), (713, 3115), (805, 2759), (1085, 2047)]