198871960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{710257}}^1$

素因数の和:710275

約数の個数: 32

約数和(自身を含む): 511385760

約数和(自身を除く): 312513800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 710257, 1420514, 2841028, 3551285, 4971799, 5682056, 7102570, 9943598, 14205140, 19887196, 24858995, 28410280, 39774392, 49717990, 99435980, 198871960]

約数ペア:

[(1, 198871960), (2, 99435980), (4, 49717990), (5, 39774392), (7, 28410280), (8, 24858995), (10, 19887196), (14, 14205140), (20, 9943598), (28, 7102570), (35, 5682056), (40, 4971799), (56, 3551285), (70, 2841028), (140, 1420514), (280, 710257)]