491920540

素因数分解:

$2^2\times 5^1\times {\mathrm{809}}^1\times {\mathrm{30403}}^1$

素因数の和:31221

約数の個数: 24

約数和(自身を含む): 1034344080

約数和(自身を除く): 542423540

約数列:

[1, 2, 4, 5, 10, 20, 809, 1618, 3236, 4045, 8090, 16180, 30403, 60806, 121612, 152015, 304030, 608060, 24596027, 49192054, 98384108, 122980135, 245960270, 491920540]

約数ペア:

[(1, 491920540), (2, 245960270), (4, 122980135), (5, 98384108), (10, 49192054), (20, 24596027), (809, 608060), (1618, 304030), (3236, 152015), (4045, 121612), (8090, 60806), (16180, 30403)]