2742040

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1399}}^1$

素因数の和:1424

約数の個数: 48

約数和(自身を含む): 7182000

約数和(自身を除く): 4439960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 49, 56, 70, 98, 140, 196, 245, 280, 392, 490, 980, 1399, 1960, 2798, 5596, 6995, 9793, 11192, 13990, 19586, 27980, 39172, 48965, 55960, 68551, 78344, 97930, 137102, 195860, 274204, 342755, 391720, 548408, 685510, 1371020, 2742040]

約数ペア:

[(1, 2742040), (2, 1371020), (4, 685510), (5, 548408), (7, 391720), (8, 342755), (10, 274204), (14, 195860), (20, 137102), (28, 97930), (35, 78344), (40, 68551), (49, 55960), (56, 48965), (70, 39172), (98, 27980), (140, 19586), (196, 13990), (245, 11192), (280, 9793), (392, 6995), (490, 5596), (980, 2798), (1399, 1960)]