31881795

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{271}}^1$

素因数の和:344

約数の個数: 64

約数和(自身を含む): 60162048

約数和(自身を除く): 28280253

約数列:

[1, 3, 5, 11, 15, 23, 31, 33, 55, 69, 93, 115, 155, 165, 253, 271, 341, 345, 465, 713, 759, 813, 1023, 1265, 1355, 1705, 2139, 2981, 3565, 3795, 4065, 5115, 6233, 7843, 8401, 8943, 10695, 14905, 18699, 23529, 25203, 31165, 39215, 42005, 44715, 68563, 92411, 93495, 117645, 126015, 193223, 205689, 277233, 342815, 462055, 579669, 966115, 1028445, 1386165, 2125453, 2898345, 6376359, 10627265, 31881795]

約数ペア:

[(1, 31881795), (3, 10627265), (5, 6376359), (11, 2898345), (15, 2125453), (23, 1386165), (31, 1028445), (33, 966115), (55, 579669), (69, 462055), (93, 342815), (115, 277233), (155, 205689), (165, 193223), (253, 126015), (271, 117645), (341, 93495), (345, 92411), (465, 68563), (713, 44715), (759, 42005), (813, 39215), (1023, 31165), (1265, 25203), (1355, 23529), (1705, 18699), (2139, 14905), (2981, 10695), (3565, 8943), (3795, 8401), (4065, 7843), (5115, 6233)]