388645915

素因数分解:

$5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{181}}^1\times {\mathrm{1979}}^1$

素因数の和:2203

約数の個数: 32

約数和(自身を含む): 553512960

約数和(自身を除く): 164867045

約数列:

[1, 5, 7, 31, 35, 155, 181, 217, 905, 1085, 1267, 1979, 5611, 6335, 9895, 13853, 28055, 39277, 61349, 69265, 196385, 306745, 358199, 429443, 1790995, 2147215, 2507393, 11104169, 12536965, 55520845, 77729183, 388645915]

約数ペア:

[(1, 388645915), (5, 77729183), (7, 55520845), (31, 12536965), (35, 11104169), (155, 2507393), (181, 2147215), (217, 1790995), (905, 429443), (1085, 358199), (1267, 306745), (1979, 196385), (5611, 69265), (6335, 61349), (9895, 39277), (13853, 28055)]