156940840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{560503}}^1$

素因数の和:560521

約数の個数: 32

約数和(自身を含む): 403562880

約数和(自身を除く): 246622040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 560503, 1121006, 2242012, 2802515, 3923521, 4484024, 5605030, 7847042, 11210060, 15694084, 19617605, 22420120, 31388168, 39235210, 78470420, 156940840]

約数ペア:

[(1, 156940840), (2, 78470420), (4, 39235210), (5, 31388168), (7, 22420120), (8, 19617605), (10, 15694084), (14, 11210060), (20, 7847042), (28, 5605030), (35, 4484024), (40, 3923521), (56, 2802515), (70, 2242012), (140, 1121006), (280, 560503)]