87784405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{107}}^1$

素因数の和:289

約数の個数: 32

約数和(自身を含む): 112803840

約数和(自身を除く): 25019435

約数列:

[1, 5, 31, 67, 79, 107, 155, 335, 395, 535, 2077, 2449, 3317, 5293, 7169, 8453, 10385, 12245, 16585, 26465, 35845, 42265, 164083, 222239, 262043, 566351, 820415, 1111195, 1310215, 2831755, 17556881, 87784405]

約数ペア:

[(1, 87784405), (5, 17556881), (31, 2831755), (67, 1310215), (79, 1111195), (107, 820415), (155, 566351), (335, 262043), (395, 222239), (535, 164083), (2077, 42265), (2449, 35845), (3317, 26465), (5293, 16585), (7169, 12245), (8453, 10385)]