212175385

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1\times {\mathrm{271}}^1$

素因数の和:505

約数の個数: 32

約数和(自身を含む): 276839424

約数和(自身を除く): 64664039

約数列:

[1, 5, 17, 61, 85, 151, 271, 305, 755, 1037, 1355, 2567, 4607, 5185, 9211, 12835, 16531, 23035, 40921, 46055, 82655, 156587, 204605, 281027, 695657, 782935, 1405135, 2496181, 3478285, 12480905, 42435077, 212175385]

約数ペア:

[(1, 212175385), (5, 42435077), (17, 12480905), (61, 3478285), (85, 2496181), (151, 1405135), (271, 782935), (305, 695657), (755, 281027), (1037, 204605), (1355, 156587), (2567, 82655), (4607, 46055), (5185, 40921), (9211, 23035), (12835, 16531)]