42678520

素因数分解:

$2^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{6389}}^1$

素因数の和:6567

約数の個数: 32

約数和(自身を含む): 96616800

約数和(自身を除く): 53938280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 334, 668, 835, 1336, 1670, 3340, 6389, 6680, 12778, 25556, 31945, 51112, 63890, 127780, 255560, 1066963, 2133926, 4267852, 5334815, 8535704, 10669630, 21339260, 42678520]

約数ペア:

[(1, 42678520), (2, 21339260), (4, 10669630), (5, 8535704), (8, 5334815), (10, 4267852), (20, 2133926), (40, 1066963), (167, 255560), (334, 127780), (668, 63890), (835, 51112), (1336, 31945), (1670, 25556), (3340, 12778), (6389, 6680)]