161509565

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{641}}^1$

素因数の和:989

約数の個数: 32

約数和(自身を含む): 232229376

約数和(自身を除く): 70719811

約数列:

[1, 5, 7, 23, 35, 115, 161, 313, 641, 805, 1565, 2191, 3205, 4487, 7199, 10955, 14743, 22435, 35995, 50393, 73715, 103201, 200633, 251965, 516005, 1003165, 1404431, 4614559, 7022155, 23072795, 32301913, 161509565]

約数ペア:

[(1, 161509565), (5, 32301913), (7, 23072795), (23, 7022155), (35, 4614559), (115, 1404431), (161, 1003165), (313, 516005), (641, 251965), (805, 200633), (1565, 103201), (2191, 73715), (3205, 50393), (4487, 35995), (7199, 22435), (10955, 14743)]