127620920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{455789}}^1$

素因数の和:455807

約数の個数: 32

約数和(自身を含む): 328168800

約数和(自身を除く): 200547880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 455789, 911578, 1823156, 2278945, 3190523, 3646312, 4557890, 6381046, 9115780, 12762092, 15952615, 18231560, 25524184, 31905230, 63810460, 127620920]

約数ペア:

[(1, 127620920), (2, 63810460), (4, 31905230), (5, 25524184), (7, 18231560), (8, 15952615), (10, 12762092), (14, 9115780), (20, 6381046), (28, 4557890), (35, 3646312), (40, 3190523), (56, 2278945), (70, 1823156), (140, 911578), (280, 455789)]