15998920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{57139}}^1$

素因数の和:57157

約数の個数: 32

約数和(自身を含む): 41140800

約数和(自身を除く): 25141880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 57139, 114278, 228556, 285695, 399973, 457112, 571390, 799946, 1142780, 1599892, 1999865, 2285560, 3199784, 3999730, 7999460, 15998920]

約数ペア:

[(1, 15998920), (2, 7999460), (4, 3999730), (5, 3199784), (7, 2285560), (8, 1999865), (10, 1599892), (14, 1142780), (20, 799946), (28, 571390), (35, 457112), (40, 399973), (56, 285695), (70, 228556), (140, 114278), (280, 57139)]