2000777470

素因数分解:

$2^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{498947}}^1$

素因数の和:499355

約数の個数: 16

約数和(自身を含む): 3610387728

約数和(自身を除く): 1609610258

約数列:

[1, 2, 5, 10, 401, 802, 2005, 4010, 498947, 997894, 2494735, 4989470, 200077747, 400155494, 1000388735, 2000777470]

約数ペア:

[(1, 2000777470), (2, 1000388735), (5, 400155494), (10, 200077747), (401, 4989470), (802, 2494735), (2005, 997894), (4010, 498947)]