87972265

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{109}}^1\times {\mathrm{127}}^1$

素因数の和:313

約数の個数: 32

約数和(自身を含む): 113541120

約数和(自身を除く): 25568855

約数列:

[1, 5, 31, 41, 109, 127, 155, 205, 545, 635, 1271, 3379, 3937, 4469, 5207, 6355, 13843, 16895, 19685, 22345, 26035, 69215, 138539, 161417, 429133, 567563, 692695, 807085, 2145665, 2837815, 17594453, 87972265]

約数ペア:

[(1, 87972265), (5, 17594453), (31, 2837815), (41, 2145665), (109, 807085), (127, 692695), (155, 567563), (205, 429133), (545, 161417), (635, 138539), (1271, 69215), (3379, 26035), (3937, 22345), (4469, 19685), (5207, 16895), (6355, 13843)]