28973290

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{109}}^1\times {\mathrm{1399}}^1$

素因数の和:1534

約数の個数: 32

約数和(自身を含む): 55440000

約数和(自身を除く): 26466710

約数列:

[1, 2, 5, 10, 19, 38, 95, 109, 190, 218, 545, 1090, 1399, 2071, 2798, 4142, 6995, 10355, 13990, 20710, 26581, 53162, 132905, 152491, 265810, 304982, 762455, 1524910, 2897329, 5794658, 14486645, 28973290]

約数ペア:

[(1, 28973290), (2, 14486645), (5, 5794658), (10, 2897329), (19, 1524910), (38, 762455), (95, 304982), (109, 265810), (190, 152491), (218, 132905), (545, 53162), (1090, 26581), (1399, 20710), (2071, 13990), (2798, 10355), (4142, 6995)]