261303720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{2177531}}^1$

素因数の和:2177545

約数の個数: 32

約数和(自身を含む): 783911520

約数和(自身を除く): 522607800

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 2177531, 4355062, 6532593, 8710124, 10887655, 13065186, 17420248, 21775310, 26130372, 32662965, 43550620, 52260744, 65325930, 87101240, 130651860, 261303720]

約数ペア:

[(1, 261303720), (2, 130651860), (3, 87101240), (4, 65325930), (5, 52260744), (6, 43550620), (8, 32662965), (10, 26130372), (12, 21775310), (15, 17420248), (20, 13065186), (24, 10887655), (30, 8710124), (40, 6532593), (60, 4355062), (120, 2177531)]