201171905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{619}}^1$

素因数の和:965

約数の個数: 32

約数和(自身を含む): 278553600

約数和(自身を除く): 77381695

約数列:

[1, 5, 11, 19, 55, 95, 209, 311, 619, 1045, 1555, 3095, 3421, 5909, 6809, 11761, 17105, 29545, 34045, 58805, 64999, 129371, 192509, 324995, 646855, 962545, 2117599, 3657671, 10587995, 18288355, 40234381, 201171905]

約数ペア:

[(1, 201171905), (5, 40234381), (11, 18288355), (19, 10587995), (55, 3657671), (95, 2117599), (209, 962545), (311, 646855), (619, 324995), (1045, 192509), (1555, 129371), (3095, 64999), (3421, 58805), (5909, 34045), (6809, 29545), (11761, 17105)]