998220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:270

約数の個数: 48

約数和(自身を含む): 2838528

約数和(自身を除く): 1840308

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 131, 254, 262, 381, 393, 508, 524, 635, 655, 762, 786, 1270, 1310, 1524, 1572, 1905, 1965, 2540, 2620, 3810, 3930, 7620, 7860, 16637, 33274, 49911, 66548, 83185, 99822, 166370, 199644, 249555, 332740, 499110, 998220]

約数ペア:

[(1, 998220), (2, 499110), (3, 332740), (4, 249555), (5, 199644), (6, 166370), (10, 99822), (12, 83185), (15, 66548), (20, 49911), (30, 33274), (60, 16637), (127, 7860), (131, 7620), (254, 3930), (262, 3810), (381, 2620), (393, 2540), (508, 1965), (524, 1905), (635, 1572), (655, 1524), (762, 1310), (786, 1270)]