22781615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{271}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 31021056

約数和(自身を除く): 8239441

約数列:

[1, 5, 17, 23, 43, 85, 115, 215, 271, 391, 731, 989, 1355, 1955, 3655, 4607, 4945, 6233, 11653, 16813, 23035, 31165, 58265, 84065, 105961, 198101, 268019, 529805, 990505, 1340095, 4556323, 22781615]

約数ペア:

[(1, 22781615), (5, 4556323), (17, 1340095), (23, 990505), (43, 529805), (85, 268019), (115, 198101), (215, 105961), (271, 84065), (391, 58265), (731, 31165), (989, 23035), (1355, 16813), (1955, 11653), (3655, 6233), (4607, 4945)]