2761640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{1409}}^1$

素因数の和:1434

約数の個数: 48

約数和(自身を含む): 7233300

約数和(自身を除く): 4471660

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, 1409, 1960, 2818, 5636, 7045, 9863, 11272, 14090, 19726, 28180, 39452, 49315, 56360, 69041, 78904, 98630, 138082, 197260, 276164, 345205, 394520, 552328, 690410, 1380820, 2761640]

約数ペア:

[(1, 2761640), (2, 1380820), (4, 690410), (5, 552328), (7, 394520), (8, 345205), (10, 276164), (14, 197260), (20, 138082), (28, 98630), (35, 78904), (40, 69041), (49, 56360), (56, 49315), (70, 39452), (98, 28180), (140, 19726), (196, 14090), (245, 11272), (280, 9863), (392, 7045), (490, 5636), (980, 2818), (1409, 1960)]