28083055

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1$

素因数の和:248

約数の個数: 64

約数和(自身を含む): 46964736

約数和(自身を除く): 18881681

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 143, 155, 181, 217, 341, 385, 403, 455, 715, 905, 1001, 1085, 1267, 1705, 1991, 2015, 2353, 2387, 2821, 4433, 5005, 5611, 6335, 9955, 11765, 11935, 13937, 14105, 16471, 22165, 25883, 28055, 31031, 39277, 61721, 69685, 72943, 82355, 129415, 155155, 181181, 196385, 308605, 364715, 432047, 510601, 802373, 905905, 2160235, 2553005, 4011865, 5616611, 28083055]

約数ペア:

[(1, 28083055), (5, 5616611), (7, 4011865), (11, 2553005), (13, 2160235), (31, 905905), (35, 802373), (55, 510601), (65, 432047), (77, 364715), (91, 308605), (143, 196385), (155, 181181), (181, 155155), (217, 129415), (341, 82355), (385, 72943), (403, 69685), (455, 61721), (715, 39277), (905, 31031), (1001, 28055), (1085, 25883), (1267, 22165), (1705, 16471), (1991, 14105), (2015, 13937), (2353, 11935), (2387, 11765), (2821, 9955), (4433, 6335), (5005, 5611)]