198641240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{709433}}^1$

素因数の和:709451

約数の個数: 32

約数和(自身を含む): 510792480

約数和(自身を除く): 312151240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 709433, 1418866, 2837732, 3547165, 4966031, 5675464, 7094330, 9932062, 14188660, 19864124, 24830155, 28377320, 39728248, 49660310, 99320620, 198641240]

約数ペア:

[(1, 198641240), (2, 99320620), (4, 49660310), (5, 39728248), (7, 28377320), (8, 24830155), (10, 19864124), (14, 14188660), (20, 9932062), (28, 7094330), (35, 5675464), (40, 4966031), (56, 3547165), (70, 2837732), (140, 1418866), (280, 709433)]