8718920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31139}}^1$

素因数の和:31157

約数の個数: 32

約数和(自身を含む): 22420800

約数和(自身を除く): 13701880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 31139, 62278, 124556, 155695, 217973, 249112, 311390, 435946, 622780, 871892, 1089865, 1245560, 1743784, 2179730, 4359460, 8718920]

約数ペア:

[(1, 8718920), (2, 4359460), (4, 2179730), (5, 1743784), (7, 1245560), (8, 1089865), (10, 871892), (14, 622780), (20, 435946), (28, 311390), (35, 249112), (40, 217973), (56, 155695), (70, 124556), (140, 62278), (280, 31139)]