21786720

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{45389}}^1$

素因数の和:45407

約数の個数: 48

約数和(自身を含む): 68629680

約数和(自身を除く): 46842960

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 80, 96, 120, 160, 240, 480, 45389, 90778, 136167, 181556, 226945, 272334, 363112, 453890, 544668, 680835, 726224, 907780, 1089336, 1361670, 1452448, 1815560, 2178672, 2723340, 3631120, 4357344, 5446680, 7262240, 10893360, 21786720]

約数ペア:

[(1, 21786720), (2, 10893360), (3, 7262240), (4, 5446680), (5, 4357344), (6, 3631120), (8, 2723340), (10, 2178672), (12, 1815560), (15, 1452448), (16, 1361670), (20, 1089336), (24, 907780), (30, 726224), (32, 680835), (40, 544668), (48, 453890), (60, 363112), (80, 272334), (96, 226945), (120, 181556), (160, 136167), (240, 90778), (480, 45389)]