49148920

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{20143}}^1$

素因数の和:20215

約数の個数: 32

約数和(自身を含む): 112403520

約数和(自身を除く): 63254600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 122, 244, 305, 488, 610, 1220, 2440, 20143, 40286, 80572, 100715, 161144, 201430, 402860, 805720, 1228723, 2457446, 4914892, 6143615, 9829784, 12287230, 24574460, 49148920]

約数ペア:

[(1, 49148920), (2, 24574460), (4, 12287230), (5, 9829784), (8, 6143615), (10, 4914892), (20, 2457446), (40, 1228723), (61, 805720), (122, 402860), (244, 201430), (305, 161144), (488, 100715), (610, 80572), (1220, 40286), (2440, 20143)]