1820840

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{929}}^1$

素因数の和:954

約数の個数: 48

約数和(自身を含む): 4770900

約数和(自身を除く): 2950060

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, 929, 980, 1858, 1960, 3716, 4645, 6503, 7432, 9290, 13006, 18580, 26012, 32515, 37160, 45521, 52024, 65030, 91042, 130060, 182084, 227605, 260120, 364168, 455210, 910420, 1820840]

約数ペア:

[(1, 1820840), (2, 910420), (4, 455210), (5, 364168), (7, 260120), (8, 227605), (10, 182084), (14, 130060), (20, 91042), (28, 65030), (35, 52024), (40, 45521), (49, 37160), (56, 32515), (70, 26012), (98, 18580), (140, 13006), (196, 9290), (245, 7432), (280, 6503), (392, 4645), (490, 3716), (929, 1960), (980, 1858)]