987428650

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1519121}}^1$

素因数の和:1519146

約数の個数: 24

約数和(自身を含む): 1977896844

約数和(自身を除く): 990468194

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 650, 1519121, 3038242, 7595605, 15191210, 19748573, 37978025, 39497146, 75956050, 98742865, 197485730, 493714325, 987428650]

約数ペア:

[(1, 987428650), (2, 493714325), (5, 197485730), (10, 98742865), (13, 75956050), (25, 39497146), (26, 37978025), (50, 19748573), (65, 15191210), (130, 7595605), (325, 3038242), (650, 1519121)]